1.Clinical Advantages of Traditional Chinese Medicine in Treatment of Pediatric Diseases
Yingke LIU ; Hong CUI ; Jian YANG ; Junhong WANG ; Liqun WU ; Xiaohua JI ; Bing AN ; Xiaomei LIU ; Weilin WAN ; Hong WANG ; Gaojun ZHOU ; Wen ZHANG ; Liyi QIU ; Kai GUO ; Xiaoxiao ZHANG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):224-231
The traditional Chinese medicine (TCM) in pediatric care has a long history,proven efficacy,and distinctive characteristics.The China Association of Chinese Medicine has organized a series of youth salons to discuss the clinical advantages of treating diseases.Experts at this seminar proposed that the superior disease categories in pediatric TCM are significant for showcasing the unique strengths and advantages of TCM in the treatment of pediatric diseases,enhancing diagnostic and treatment levels,inheriting TCM knowledge,promoting the integration of TCM and Western medicine,and meeting patients' needs.The strengths of pediatric TCM are summed up as "having what others do not,excelling at what others have,being special in what others excel at,and ensuring safety in what others specialize in." The scope of superiority in pediatric TCM covers multiple systems,including respiratory,digestive,endocrine,psychological,and dermatological systems.This article summarized the advantages of TCM in treating 13 diseases discussed in the salon,such as upper respiratory tract infections,coughs,pneumonia,allergic rhinitis,bronchial asthma,atopic dermatitis,functional dyspepsia,functional constipation,enuresis,marginal short stature,simple obesity,attention deficit hyperactivity disorder,and tic disorders.The overall advantages were reflected in three aspects:First,the holistic concept and treatment based on syndrome differentiation in TCM highlight the advantage of treating the root causes of diseases,making the treatment methodical and precise.Second,most traditional Chinese herbs are natural and have strong safety profiles.Third,TCM treatment methods are abundant,especially the external treatment methods,which are widely used in pediatrics,highly accepted by parents,and have definite efficacy,as well as good safety and compliance.
2.Effects of Needle Retention Time for Scalp Acupuncture on Motor Dysfunction and Serum C-Reactive Protein,Blood Glucose and Blood Lipid of Post-Stroke Patients
Qi ZHONG ; Hai-Yan CAI ; Bing-Xu JIN ; Zhan-Xin HUO ; Hui-Yi LUO ; Qiu-Xia ZHONG ; Hao-Xun GUO ; Jia-Wen CHEN ; Shu-Hui ZOU
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(6):1510-1516
Objective To observe the improvement of motor dysfunction and serum levels of C-reactive protein(CRP),blood glucose and blood lipid in post-stroke patients treated with scalp acupuncture at different needle retention time.Methods A total of 120 patients with motor dysfunction after stroke were randomly divided into control group,observation group 1 and observation group 2,with 40 cases in each group.The patients in the 3 groups were treated with scalp acupuncture,body acupuncture and routine rehabilitation exercise,once a day and 6 times a week,lasting for 2 weeks.The control group was given scalp acupuncture with retaining of needles for 30 minutes,the observation group 1 was given scalp acupuncture with retaining of needles for one hour,and the observation group 2 was given scalp acupuncture with retaining of needles for 2 hours.Before and after treatment,the 3 groups were observed in the changes of the scale scores of National Institutes of Health Stroke Scale(NIHSS),Fugl-Meyer Assessment(FM A),Berg Balance Scale(BBS)and modified Barthel Index(MBI),and the levels of laboratory indicators of peripheral blood CRP,fasting plasma glucose(FPG),total cholesterol(TC),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C)and low-density lipoprotein cholesterol(LDL-C).After treatment,the clinical safety of the three groups was evaluated.Results(1)After treatment,the scale scores of NIHSS in the three groups were lower(P<0.01)and the scale scores FMA,BBS and MBI were higher than those before treatment(P<0.05 or P<0.01).The comparison of post-treatment scale scores showed that the differences among the three groups were statistically significant(P<0.01).The intergroup comparison showed that the decrease of NIHSS score and the increase of FMA,BBS and MBI scores in the observation group 2 were significantly superior to those in the control group and the observation group 1(P<0.01);the improvement of FMA score in the observation group 1 was significantly superior to that in the control group(P<0.01),while the improvement of NIHSS,BBS and MBI scores tended to be superior to that in the control group without statistically significant differences(P>0.05).The results indicated that the curative effect of scalp acupuncture plus exercise regimen was positively correlated with the duration of needle retention for scalp acupuncture.(2)After treatment,the laboratory indicator levels of CRP and FPG in the peripheral blood of the three groups,the levels of TG and LDL-C in the two observation groups and the level of HDL-C in the observation group 2 were improved compared with those before treatment(P<0.05 or P<0.01).Statistically significant differences were presented in the post-treatment levels of CRP and TG in peripheral blood among the three groups(P<0.05 or P<0.01).The intergroup comparison showed that the improvement of CRP and TG levels in the observation group 2 was significantly superior to that in the control group,and the improvement of CRP level in the observation group 2 was significantly superior to that in the observation group 1,the differences being statistically significant(P<0.05 or P<0.01).The TC level in the three groups after treatment did not differ from that before treatment,and there was no significant difference in TC level after treatment among the three groups either(P>0.05).(3)During the treatment,no adverse reactions such as fainting,needle breaking and hematoma occurred in the three groups,the vital signs of the patients were stable,and there were no obvious abnormal changes in pulse,blood pressure and respiratory rate.Conclusion Scalp acupuncture can effectively improve the motor function of post-stroke patients in a pasitive time-effect relationship with the needle retention,and better the curative effect can be achieved by retaining of the needle for 2 h.
3.Analysis on status quo of outcomes and measurement instruments of randomized controlled trials of acupuncture for post-stroke dysphagia.
Wen-Cong CAO ; Xing-Ying QIU ; Bing-Qing LIU ; Geng LI ; Ze-Huai WEN
Chinese Acupuncture & Moxibustion 2023;43(9):1086-1093
OBJECTIVE:
To analyze the report status of outcomes and measurement instruments of randomized controlled trials (RCTs) of acupuncture for post-stroke dysphagia, so as to provide a basis for designing clinical trials and developing the core outcome set in acupuncture for post-stroke dysphagia.
METHODS:
RCTs of acupuncture for post-stroke dysphagia were searched in databases i.e. CNKI, SinoMed, Wanfang, PubMed, EMbase, Web of Science and clinical trial registries i.e. ClinicalTrials.gov and Chinese Clinical Trial Registry (ChiCTR), from January 1st, 2012 to October 30th, 2021. By literature screening and data extraction, outcomes and measurement instruments were summarized and analyzed.
RESULTS:
A total of 172 trials (including 165 RCTs and 7 ongoing trials registrations) were included, involving 91 outcomes. The outcomes could be classified into 7 domains according to functional attributes, namely clinical manifestation, physical and chemical examination, quality of life, TCM symptoms/syndromes, long-term prognosis, safety assessment and economic evaluation. It was found that there were various measurements instruments with large differences, inconsistent measurement time point and without discriminatively reporting primary or secondary outcomes.
CONCLUSION
The status quo of outcomes and measurement instruments of RCTs of acupuncture for post-stroke dysphagia is not conducive to the summary and comparison of each trial's results. Thus, it is suggested to develop a core outcome set for acupuncture for post-stroke dysphagia to improve the normative and research quality of their clinical trial design.
Humans
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Deglutition Disorders/therapy*
;
Randomized Controlled Trials as Topic
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Acupuncture Therapy
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Databases, Factual
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Physical Examination
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Stroke/complications*
4.Guideline for clinical comprehensive evaluation of Chinese patent medicine (2022 version).
Wei-An YUAN ; Jun-Hua ZHANG ; Jian-Ping LIU ; Zhong-Qi YANG ; Jun-Ling CAO ; Xing LIAO ; Xiao-Yu XI ; Mei HAN ; Wen-Yuan LI ; Zhen-Wen QIU ; Shi-Yin FENG ; Yuan-Yuan GUO ; Lu-Jia CAO ; Xiao-Hong LIAO ; Yan-Ling AI ; Ju HUANG ; Lu-Lu JIA ; Xiang-Fei SU ; Xue WU ; Ze-Qi DAI ; Ji-Hua GUO ; Bing-Qing LU ; Xiao-Xiao ZHANG ; Jian-Yuan TANG
China Journal of Chinese Materia Medica 2023;48(1):256-264
Currently,the research or publications related to the clinical comprehensive evaluation of Chinese patent medicine are increasing,which attracts the broad attention of all circles. According to the completed clinical evaluation report on Chinese patent medicine,there are still practical problems and technical difficulties such as unclear responsibility of the evaluation organization,unclear evaluation subject,miscellaneous evaluation objects,and incomplete and nonstandard evaluation process. In terms of evaluation standards and specifications,there are different types of specifications or guidelines with different emphases issued by different academic groups or relevant institutions. The professional guideline is required to guide the standardized and efficient clinical comprehensive evaluation of Chinese patent medicine and further improve the authority and quality of evaluation. In combination with the characteristics of Chinese patent medicine and the latest research achievement at home and abroad,the detailed specifications were formulated from six aspects including design,theme selection,content and index,outcome,application and appraisal,and quality control. The guideline was developed based on the guideline development requirements of China Assoication of Chinese medicine. After several rounds of expert consensus and public consultation,the current version of the guideline has been developed.
Medicine, Chinese Traditional
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Nonprescription Drugs
;
Consensus
;
China
;
Reference Standards
;
Drugs, Chinese Herbal
5.The application of intraoperative neurophysiological monitoring in selective dorsal neurotomy for primary premature ejaculation: a prospective single-center study.
Qing-Lai TANG ; Tao SONG ; You-Feng HAN ; Bai-Bing YANG ; Jian-Huai CHEN ; Zhi-Peng XU ; Chun-Lu XU ; Yang XU ; Wen YU ; Wei QIU ; Jiong SHI ; En-Si ZHANG ; Yu-Tian DAI
Asian Journal of Andrology 2023;25(1):137-142
Selective dorsal neurotomy (SDN) is a surgical treatment for primary premature ejaculation (PE), but there is still no standard surgical procedure for selecting the branches of the dorsal penile nerves to be removed. We performed this study to explore the value of intraoperative neurophysiological monitoring (IONM) of the penile sensory-evoked potential (PSEP) for standard surgical procedures in SDN. One hundred and twenty primary PE patients undergoing SDN were selected as the PE group and 120 non-PE patients were selected as the normal group. The PSEP was monitored and compared between the two groups under both natural and general anesthesia (GA) states. In addition, patients in the PE group were randomly divided into the IONM group and the non-IONM group. During SDN surgery, PSEP parameters of the IONM group were recorded and analyzed. The differences in PE-related outcome measurements between the perioperative period and 3 months' postoperation were compared for the PE patients, and the differences in effectiveness and complications between the IONM group and the non-IONM group were compared. The results showed that the average latency of the PSEP in the PE group was shorter than that in the normal group under both natural and GA states (P < 0.001). Three months after surgery, the significant effective rates in the IONM and non-IONM groups were 63.6% and 34.0%, respectively (P < 0.01), and the difference in complications between the two groups was significant (P < 0.05). IONM might be useful in improving the short-term therapeutic effectiveness and reducing the complications of SDN.
Male
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Humans
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Premature Ejaculation/surgery*
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Intraoperative Neurophysiological Monitoring/methods*
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Prospective Studies
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Neurosurgical Procedures/methods*
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Penis/surgery*
;
Retrospective Studies
6.Observational study on perioperative outcomes of pelvic exenteration.
Hao YUAN ; Bing YAO ; Jun Tao LI ; Wen Liang ZHU ; Dong Lin REN ; Hui WANG ; Teng Hui MA ; Shu Qin CHEN ; Jian Jian WU ; Yi Ran TAO ; Lei YE ; Zhong Yang WANG ; Hu QU ; Bo MA ; Wen Wen ZHONG ; De Juan WANG ; Jian Guang QIU
Chinese Journal of Gastrointestinal Surgery 2023;26(3):260-267
Objective: To investigate the surgical indications and perioperative clinical outcomes of pelvic exenteration (PE) for locally advanced, recurrent pelvic malignancies and complex pelvic fistulas. Methods: This was a descriptive study.The indications for performing PE were: (1) locally advanced, recurrent pelvic malignancy or complex pelvic fistula diagnosed preoperatively by imaging and pathological examination of a biopsy; (2)preoperative agreement by a multi-disciplinary team that non-surgical and conventional surgical treatment had failed and PE was required; and (3) findings on intraoperative exploration confirming this conclusion.Contraindications to this surgical procedure comprised cardiac and respiratory dysfunction, poor nutritional status,and mental state too poor to tolerate the procedure.Clinical data of 141 patients who met the above criteria, had undergone PE in the Sixth Affiliated Hospital of Sun Yat-sen University from January 2018 to September 2022, had complete perioperative clinical data, and had given written informed consent to the procedure were collected,and the operation,relevant perioperative variables, postoperative pathological findings (curative resection), and early postoperative complications were analyzed. Results: Of the 141 included patients, 43 (30.5%) had primary malignancies, 61 (43.3%) recurrent malignancies, 28 (19.9%) complex fistulas after radical resection of malignancies,and nine (6.4%)complex fistulas caused by benign disease. There were 79 cases (56.0%) of gastrointestinal tumors, 30 cases (21.3%) of reproductive tumors, 16 cases (11.3%) of urinary tumors, and 7 cases (5.0%) of other tumors such mesenchymal tissue tumors. Among the 104 patients with primary and recurrent malignancies, 15 patients with severe complications of pelvic perineum of advanced tumors were planned to undergo palliative PE surgery for symptom relief after preoperative assessment of multidisciplinary team; the other 89 patients were evaluated for radical PE surgery. All surgeries were successfully completed. Total PE was performed on 73 patients (51.8%),anterior PE on 22 (15.6%),and posterior PE in 46 (32.6%). The median operative time was 576 (453,679) minutes, median intraoperative blood loss 500 (200, 1 200) ml, and median hospital stay 17 (13.0,30.5)days.There were no intraoperative deaths. Of the 89 patients evaluated for radical PE surgery, the radical R0 resection was achieved in 64 (71.9%) of them, R1 resection in 23 (25.8%), and R2 resection in two (2.2%). One or more postoperative complications occurred in 85 cases (60.3%), 32 (22.7%)of which were Clavien-Dindo grade III and above.One patient (0.7%)died during the perioperative period. Conclusion: PE is a valid option for treating locally advanced or recurrent pelvic malignancies and complex pelvic fistulas.
Humans
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Pelvic Exenteration/methods*
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Pelvic Neoplasms/surgery*
;
Retrospective Studies
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Neoplasm Recurrence, Local/surgery*
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Postoperative Complications
7.Application of limiting antigen avidity enzyme immunoassay for estimating HIV-1 incidence in men who have sex with men.
Xi Jia TANG ; Lei Jing DUAN ; Wen Li LIANG ; Si CHENG ; Ting Li DONG ; Zhen XIE ; Kang Mai LIU ; Fei YU ; Zi Huang CHEN ; Guo Dong MI ; Liang LIANG ; Hong Jing YAN ; Lin CHEN ; Li LIN ; Dian Min KANG ; Xiao Bing FU ; Mao Feng QIU ; Zhen JIANG ; Jie XU ; Zun You WU
Chinese Journal of Epidemiology 2022;43(1):72-77
Objective: To estimate the incidence of HIV-1 infection in men who have sex with men (MSM) in key areas of China through HIV-1 limiting antigen avidity enzyme immunoassay (LAg-Avidity EIA), analyze the deviation from the actual results and identify influencing factors, and provided reference for improving the accuracy of estimation results. Methods: Based on the principle of the cohort randomized study design, 20 cities were selected in China based on population size and the number of HIV-positive MSM. The sample size was estimated to be 700 according to the HIV-1 infection rate in MSM. MSM mobile phone app. was used to establish a detection appointment and questionnaire system, and the baseline cross-sectional survey was conducted from April to November 2019. LAg-Avidity EIA was used to identify the recent infected samples. The incidence of HIV-1 infection was calculated and then adjusted based on the estimation formula designed by WHO. The influencing factors were identified by analyzing the sample collection and detection processes. Results: Among the 10 650 blood samples from the participants, 799 were HIV-positive in initial screening, in which 198 samples (24.78%) missed during confirmation test. Only 621 samples were received by the laboratory. After excluding misreported samples, 520 samples were qualified for testing. A total of 155 samples were eventually determined as recent infection through LAg-Avidity EIA; Based on the estimation formula , the incidence of HIV-1 infection in MSM in 20 cities was 4.06% (95%CI:3.27%-4.85%), it increased to 5.53% (95%CI: 4.45%-6.60%)after the adjusting for sample missing rate. When the sample missing rate and misreporting rate were both adjusted, the incidence of HIV-1 infection in the MSM increased to 5.66% (95%CI:4.67%-6.65%). The actual incidence of HIV-1 infection in MSM in the 20 cities might be between 4.06% and 5.66%. Conclusions: Sample missing and misreporting might cause the deviation of the estimation of HIV-1 infection incidence. It is important to ensure the sample source and the quality of sample collection and detection to reduce the deviation in the estimation of HIV-1 infection incidence.
Cross-Sectional Studies
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HIV Infections/epidemiology*
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HIV-1
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Homosexuality, Male
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Humans
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Immunoenzyme Techniques
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Incidence
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Male
;
Sexual and Gender Minorities
8.Analysis of HIV-1 genetic subtype and pretreatment drug resistance among men who have sex with men infected with HIV-1 from 19 cities of 6 provinces in China.
Ran ZHANG ; Ting Li DONG ; Wen Li LIANG ; Zhao Bing CAO ; Zhen XIE ; Kang Mai LIU ; Fei YU ; Geng Feng FU ; Yu Qi ZHANG ; Guo Yong WANG ; Qiao Qin MA ; Shao Bin WU ; Yan LI ; Wei DONG ; Zhen JIANG ; Jie XU ; Zun You WU ; Jun YAO ; Pin Liang PAN ; Mao Feng QIU
Chinese Journal of Epidemiology 2022;43(4):523-527
Objective: To investigate the distribution of HIV-1 genetic subtypes and pretreatment drug resistance (PDR) among men who have sex with men (MSM) from 19 cities of 6 provinces in China. Methods: From April to November 2019, 574 plasma samples of ART-naive HIV-1 infected MSM were collected from 19 cities in Hebei, Shandong, Jiangsu, Zhejiang, Fujian, and Guangdong provinces, total ribonucleic acid (RNA) was extracted and amplified the HIV-1 pol gene region by nested polymerase chain reaction (PCR) after reverse transcription. Then sequences were used to construct a phylogenetic tree to determine genetic subtypes and submitted to the Stanford drug resistance database for drug resistance analysis. Results: A total of 479 samples were successfully amplified by PCR. The HIV-1 genetic subtypes included CRF01_AE, CRF07_BC, B, CRF55_01B, CRF59_01B, CRF65_cpx, CRF103_01B, CRF67_01B, CRF68_01B and unrecognized subtype, which accounted for 43.4%, 36.3%, 6.3%, 5.9%, 0.8%, 0.8%, 0.4%, 0.4%, 0.2% and 5.5%, respectively. The distribution of genetic subtypes among provinces is statistically different (χ2=44.141, P<0.001). The overall PDR rate was 4.6% (22/479), the drug resistance rate of non-nucleoside reverse transcriptase inhibitors, nucleoside reverse transcriptase inhibitors, and protease inhibitors were 3.5% (17/479), 0.8% (4/479) and 0.2% (1/479), respectively. The PDR rate of recent infections was significantly higher than that of long-term infections (χ2=4.634, P=0.031). Conclusions: The HIV-1 genetic subtypes among MSM infected with HIV-1 from 19 cities of 6 provinces in China are diverse, and the distribution of subtypes is different among provinces. The overall PDR rate is low, while the PDR rate of recent infections was significantly higher than that of long-term infections, suggesting the surveillance of PDR in recent infections should be strengthened.
China/epidemiology*
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Cities
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Drug Resistance
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Drug Resistance, Viral/genetics*
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Female
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Genotype
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HIV Infections/epidemiology*
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HIV Seropositivity/drug therapy*
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HIV-1/genetics*
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Homosexuality, Male
;
Humans
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Male
;
Phylogeny
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Reverse Transcriptase Inhibitors/therapeutic use*
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Sexual and Gender Minorities
9.Analysis on off-label use of drugs in pediatric guidelines and consensus published by Chinese authors.
Min MENG ; Ping WANG ; Hui LAN ; Wen Juan LEI ; Quan SHEN ; Qi ZHOU ; Ren Feng SU ; Meng LYU ; Bo YANG ; Xu Fei LUO ; Ruo Bing LEI ; Tian Chun HOU ; Qiu LI ; Yao Long CHEN
Chinese Journal of Pediatrics 2022;60(3):215-220
Objective: To understand the current situation regarding pediatric off-label use of drugs recommendations in Chinese clinical practice guidelines and to make recommendations for standardized reporting format regarding off-label use of drugs for children. Methods: This cross-sectional study was carried out by systematically searching the databases for Chinese guideline consensus articles published in journals between 2018 and 2020 and extracting recommendations regarding off-label use of drugs from those articles. The essential characteristics of the included guidelines, the ranking of off-label drug types, the order of drug information, the type of off-label drug use, and the percentage of citation studies on which the recommendations were based were analyzed. Results: Among 108 studies that included Chinese off-label guidelines and consensus, 364 recommendations on pediatric off-label use of drugs were included. The Chinese Medical Association published the most, 48 out of the 108 studies (44.4%), and of those 14 studies (13.0%) were on infectious and parasitic diseases. Of the 364 recommendations on off-label use of drugs, the most commonly addressed drugs were 16 recommendations (4.4%) for cyclosporine A, 11 recommendations (3.0%) for methotrexate , and 11 recommendations (3.0%) for fentanyl. The most commonly addressed drug categories were as follows: 68 recommendations (18.6%) were immune system drugs, 66 recommendations (18.1%) were anti-infectives, and 56 recommendations (15.4%) were oncology drugs. The most commonly addressed drug information accounts were as follows: 364 recommendations (100.0%) were indications, 204 recommendations (56.0%) were dosages, and 198 recommendations (54.4%) were the route of administration. Based on the instructions approved by the Chinese Food and Drug Administration, the main forms of the off-label drug were as follows: 175 recommendations (48.1%) were unapproved indications, 127 recommendations (34.9%) were unapproved populations, and 72 recommendations (19.8%) were unapproved ages. Only 129 recommendations (35.4%) were cited, mainly including clinical guidelines (48 studies, 23.4%), reviews (22 studies, 10.7%), and pediatric randomized controlled trials (22 studies, 10.7%). Conclusions: Off-label use of drugs is commonly recommended in pediatric guidelines and consensus documents written by Chinese authors. However, the reporting of the recommendations varies widely, and the quality of the supporting evidence is poor.
Child
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China
;
Consensus
;
Cross-Sectional Studies
;
Humans
;
Off-Label Use
;
Pharmaceutical Preparations
10.The value of virtual monoenergetic images and electron density map derived from dual-layer spectral detector CT in differentiating benign from malignant pulmonary ground glass nodules
Jiansheng QIU ; Xiaoyan XIN ; Wen YANG ; Chen CHU ; Xingbiao CHEN ; Zhihong SHENG ; Baoxin LI ; Xin ZHANG ; Xiaoming FU ; Bing ZHANG
Chinese Journal of Radiology 2022;56(2):175-181
Objective:To investigate the clinical value of virtual monoenergetic images (VMI) and electron density map (EDM) derived from the dual-layer spectral detector CT (DLCT) in the differential diagnosis of benign and malignant pulmonary ground glass nodules (GGN).Methods:From July 2019 to August 2020, a total of 65 patients with lung GGN (27 benign GGNs and 38 malignant GGNs) confirmed by pathology were retrospectively enrolled in Gulou Clinical Medical College of Nanjing Medical University. All the patients underwent DLCT plain scanning within two weeks before the surgery. The conventional 120 kVp polyenergetic image (PI), EDM and 40-80 keV VMI were reconstructed. The differences of CT and electron density (ED) values between benign and malignant lesions on different images were compared by Mann-Whitney U test. Independent t-test was used to compare the lesion size and χ 2 test was used to analyze the CT features (including lesion location, shape, edge, internal structure, adjacent structure, nodule type) between benign and malignant lesions. Receiver operating characteristic (ROC) curve was used to analyze the efficacy of different energy spectrum quantitative parameters in the differential diagnosis of benign and malignant GGN. The statistically significant CT signs and energy spectrum quantitative parameters were analyzed by logistic regression analysis to find out the independent risk factors of malignant GGN, and then ROC curve analysis was performed for each independent risk factor alone or in combination. Results:There were significant differences in lesion shape, spiculation, lobulation, location and size between benign and malignant groups ( P<0.05). The CT value of pulmonary GGN in PI, 40-80 keV VMI and the ED value in EDM were statistically different between benign and malignant lesions ( P<0.05). The area under ROC curve (AUC) were 0.680, 0.682, 0.683, 0.686, 0.694, 0.676 and 0.722, respectively, among which the ED value had the highest AUC. Binary logistic regression analysis was carried out with GGN shape, spiculation, lobulation, location, size, ED value and CT value in PI, 40-80 keV VMI as independent variables, and malignant GGN as dependent variables. The results showed that ED value (OR=1.045, 95%CI 1.001-1.090, P=0.044), lesion size (OR=1.582, 95%CI 1.159-2.158, P=0.004), spiculation sign (OR=11.352, 95%CI 2.379-54.172, P=0.002) were independent risk factors for malignant GGN. ROC curve analysis showed the AUC of ED value, lesion size, spiculation sign and combination of the three for differential diagnosis of benign and malignant GGN were 0.722, 0.772, 0.698 and 0.885. The AUC for the combined parameters was the largest, with sensitivity of 92.1% and specificity of 74.1%. Conclusion:The diagnostic efficacy of EDM is higher than that of other VMI in the differential diagnosis of pulmonary GGN by DLCT images; The efficacy is further improved when EDM is combined with lesion size and spiculation sign for comprehensive diagnosis.

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