1.Evaluation of CARIFS Score and Negative Antigen Conversion Rate of Qingxuan Daozhi Formula in Treatment of Influenza in Children (Heat Accumulation in Lung and Stomach Syndrome):A Multi-center Randomized Controlled Clinical Study
Jing WANG ; Liqun WU ; Tiegang LIU ; Yongning CAO ; Jing QIU ; Jing LI ; Huaqing TAN ; Ying ZHANG ; Xulei GOU ; Jia WANG ; Jing LI ; Haipeng CHEN ; Xueying QIN ; Yuanshuo TIAN ; Yang WANG ; Chen BAI ; Zhendong WANG ; Qianqian LI ; He YU ; Xueyan MA ; Fei DONG ; Lin JIANG ; Yingqi XU ; Jianping LIU ; Xiaohong GU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(13):188-196
ObjectiveThis paper aims to observe the syndrome improvement and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children (heat accumulation in the lung and stomach syndrome). MethodsThrough a multi-center randomized controlled methodology design,confirmed influenza cases were collected from October 2022 to April 2023 in the pediatrics department of eight hospitals,such as Dongfang Hospital of Beijing University of Chinese Medicine. A total of 180 children with influenza and heat accumulation in the lung and stomach syndrome conforming to the standard were recruited through the clinic. The sick children meeting the inclusion criteria were randomly divided into groups by a block-randomized method. The children in the experimental group were treated with Qingxuan Daozhi formula for five days,and those in the control group were treated with Oseltamivir Phosphate Granules for five days. The primary efficacy indicator was the negative conversion rate of influenza antigen detection. Secondary efficacy indicators were the Canadian acute respiratory illness and flu scale (CARIFS) and the incidence of complications,severe cases, and critical cases. Follow-up observation was conducted on the day of enrollment,48 hours after medication,72 hours after medication, and (6+1) d after medication. ResultsOne hundred and eighty participants were randomly assigned to the experimental group (90 cases) or the control group (90 cases). All participants were followed up during the study. Comparison of influenza antigen detection results in the primary efficacy indicators showed that the average time of negative influenza antigen conversion in the experimental group was (5.29±1.25) d,and that in the control group was (5.40±1.68) d,without a statistically significant difference. After five days of intervention,52 cases in the experimental group and 51 cases in the control group converted to negative,without a statistically significant difference. CARIFS score results in the secondary efficacy indicators showed that during 72 hours after intervention,there were statistically significant differences between the experimental group and the control group in three dimensions, including headache,muscle soreness, and the need for extra care (P<0.05). On the (6+1) days after the intervention,the differences in both the experimental group and the control group were statistically significant in 10 dimensions, including sore throat,bad sleep,uncomfortable feeling,poor spirit and fatigue,crying more than usual,the need for extra care,symptom,function,influence on parents,and total score (P<0.05). The comparison results within the group in the dimensional scores of symptom, function, and influence on parents,as well as the CARIFS total score showed that with the delay of follow-up time,scores of both groups decreased significantly,with a statistically significant difference (P<0.01). Inter-group comparison results showed that the mean score of the experimental group was higher than that of the control group at the time of enrollment. With the progress of intervention,the score of the experimental group was significantly decreased compared with that of the control group. At the end of follow-up,the mean score of the experimental group was lower than that of the control group,with no statistically significant difference. In terms of the incidence of complications,severe cases, and critical cases, there were no complications,severe cases, and critical cases in the two groups,without a statistically significant difference. ConclusionThe symptom improvement effect and negative antigen conversion rate of Qingxuan Daozhi formula in the treatment of influenza in children (heat accumulation in the lung and stomach syndrome) are not inferior to Oseltamivir Phosphate granules, and children's acceptance is better. It can be more widely used in clinical treatment of influenza in children (heat accumulation in the lung and stomach syndrome).
2.Clinical Observation on Electroacupuncture of Bilateral Yifeng Points Penetrating Lianquan Points Combined with Electromyographic Biofeedback Therapy in the Treatment of Patients with Post-stroke Dysphagia
Lining LIU ; Junfeng YU ; Haipeng ZHANG ; Xiaohong JIA ; Junli AN
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(3):656-661
Objective To observe the clinical efficacy of electroacupuncture of bilateral Yifeng(SJ17)points penetrating Lianquan(RN23)points combined with electromyographic biofeedback therapy(shortened as EMG biofeedback)in the treatment of post-stroke dysphagia.Methods A total of 94 cases of patients admitted to the wards and outpatient clinics of Handan Mingren Hospital with a definitive diagnosis of post-stroke dysphagia from April 2022 to May 2023 were selected for the study.The patients were randomly divided into observation group and control group according to the random number table method,with 47 cases in each group.Both groups of patients were given basic treatment,the control group was treated with EMG biofeedback,and the observation group was treated with electroacupuncture of bilateral Yifeng points penetrating Lianquan points on the basis of the treatment of the control group.The course of treatment covered four consecutive weeks.After one month of treatment,the clinical efficacy of the two groups was evaluated,and the changes in traditional Chinese medicine(TCM)syndrome scores and Kubota Water Swallowing Test scores,Standardized Swallowing Assessment(SSA)scores,Functional Oral Intake Scale(FOIS)scores,and Swallowing-Quality of Life(SWAL-QOL)scores before and after treatment were observed in the patients of the two groups.The changes of tongue pressure before and after treatment were compared between the two groups.The safety and the incidence of adverse reactions in the two groups were evaluated.Results(1)The total effective rate was 95.74%(45/47)in the observation group and 76.60%(36/47)in the control group.The efficacy of the observation group was superior to that of the control group,the difference being statistically significant(P<0.05).(2)After treatment,the TCM syndrome scores and Kubota Water Swallowing Test scores of the patients in the two groups were improved significantly(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(3)After treatment,SSA and FOIS scores of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(4)After treatment,the peak tongue pressure,mean tongue pressure,duration of tongue pressure of the two groups were improved significantly(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(5)After treatment,the quality of life scores of patients in the two groups were significantly improved(P<0.05),and the improvement in the observation group was significantly superior to that in the control group,the difference being statistically significant(P<0.05).(6)No obvious adverse reactions occurred during the treatment of the two groups of patients,the difference in the incidence of adverse reactions between the two groups of patients being not statistically significant(P>0.05).Conclusion Electroacupuncture of bilateral Yifeng points penetrating Lianquan points combined with EMG biofeedback in the treatment of post-stroke dysphagia exerts certain efficacy,which can improve the swallowing function and tongue muscle strength,reduce TCM syndrome scores,and enhance patients'quality of life.
3.Clinical Efficacy of Xiaoji Hufei Formula in Protecting Children with Close Contact Exposure to Influenza: A Multicenter,Prospective, Non-randomized, Parallel, Controlled Trial
Jing WANG ; Jianping LIU ; Tiegang LIU ; Hong WANG ; Yingxin FU ; Jing LI ; Huaqing TAN ; Yingqi XU ; Yanan MA ; Wei WANG ; Jia WANG ; Haipeng CHEN ; Yuanshuo TIAN ; Yang WANG ; Chen BAI ; Zhendong WANG ; Qianqian LI ; He YU ; Xueyan MA ; Fei DONG ; Liqun WU ; Xiaohong GU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):223-230
ObjectiveTo evaluate the efficacy and safety of Xiaoji Hufei Formula in protecting children with close contact exposure to influenza, and to provide reference and evidence-based support for better clinical prevention and treatment of influenza in children. MethodsA multicenter, prospective, non-randomized, parallel, controlled trial was conducted from October 2021 to May 2022 in five hospitals, including Dongfang Hospital of Beijing University of Chinese Medicine. Confirmed influenza cases and influenza-like illness (ILI) cases were collected, and eligible children with close contact exposure to these cases were recruited in the outpatient clinics. According to whether the enrolled close contacts were willing to take Xiaoji Hufei formula for influenza prevention, they were assigned to the observation group (108 cases) or the control group (108 cases). Follow-up visits were conducted on days 7 and 14 after enrollment. The primary outcomes were the incidence of ILI and the rate of laboratory-confirmed influenza. Secondary outcomes included traditional Chinese medicine (TCM) symptom score scale for influenza, influenza-related emergency (outpatient) visit rate, influenza hospitalization rate, and time to onset after exposure to influenza cases. ResultsA total of 216 participants were enrolled, with 108 in the observation group and 108 in the control group. Primary outcomes: (1) Incidence of ILI: The incidence was 12.0% (13/108) in the observation group and 23.1% (25/108) in the control group, with the observation group showing a significantly lower incidence (χ2=4.6, P<0.05). (2) Influenza confirmation rate: 3.7% (4/108) in the observation group and 4.6% (5/108) in the control group, with no statistically significant difference. Secondary outcomes: (1) TCM symptom score scale: after onset, nasal congestion and runny nose scores differed significantly between the two groups (P<0.05), while other symptoms such as fever, sore throat, and cough showed no significant differences. (2) Influenza-related emergency (outpatient) visit rate: 84.6% (11 cases) in the observation group and 96.0% (24 cases) in the control group, with no significant difference. (3) Time to onset after exposure: The median onset time after exposure to index patients was 7 days in the observation group and 4 days in the control group, with a statistically significant difference (P<0.05). ConclusionIn previously healthy children exposed to infectious influenza cases under unprotected conditions, Xiaoji Hufei formula prophylaxis significantly reduced the incidence of ILI. Xiaoji Hufei Formula can be recommended as a specific preventive prescription for influenza in children.
4.Clinical Efficacy of Xiaoji Hufei Formula in Protecting Children with Close Contact Exposure to Influenza: A Multicenter,Prospective, Non-randomized, Parallel, Controlled Trial
Jing WANG ; Jianping LIU ; Tiegang LIU ; Hong WANG ; Yingxin FU ; Jing LI ; Huaqing TAN ; Yingqi XU ; Yanan MA ; Wei WANG ; Jia WANG ; Haipeng CHEN ; Yuanshuo TIAN ; Yang WANG ; Chen BAI ; Zhendong WANG ; Qianqian LI ; He YU ; Xueyan MA ; Fei DONG ; Liqun WU ; Xiaohong GU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(21):223-230
ObjectiveTo evaluate the efficacy and safety of Xiaoji Hufei Formula in protecting children with close contact exposure to influenza, and to provide reference and evidence-based support for better clinical prevention and treatment of influenza in children. MethodsA multicenter, prospective, non-randomized, parallel, controlled trial was conducted from October 2021 to May 2022 in five hospitals, including Dongfang Hospital of Beijing University of Chinese Medicine. Confirmed influenza cases and influenza-like illness (ILI) cases were collected, and eligible children with close contact exposure to these cases were recruited in the outpatient clinics. According to whether the enrolled close contacts were willing to take Xiaoji Hufei formula for influenza prevention, they were assigned to the observation group (108 cases) or the control group (108 cases). Follow-up visits were conducted on days 7 and 14 after enrollment. The primary outcomes were the incidence of ILI and the rate of laboratory-confirmed influenza. Secondary outcomes included traditional Chinese medicine (TCM) symptom score scale for influenza, influenza-related emergency (outpatient) visit rate, influenza hospitalization rate, and time to onset after exposure to influenza cases. ResultsA total of 216 participants were enrolled, with 108 in the observation group and 108 in the control group. Primary outcomes: (1) Incidence of ILI: The incidence was 12.0% (13/108) in the observation group and 23.1% (25/108) in the control group, with the observation group showing a significantly lower incidence (χ2=4.6, P<0.05). (2) Influenza confirmation rate: 3.7% (4/108) in the observation group and 4.6% (5/108) in the control group, with no statistically significant difference. Secondary outcomes: (1) TCM symptom score scale: after onset, nasal congestion and runny nose scores differed significantly between the two groups (P<0.05), while other symptoms such as fever, sore throat, and cough showed no significant differences. (2) Influenza-related emergency (outpatient) visit rate: 84.6% (11 cases) in the observation group and 96.0% (24 cases) in the control group, with no significant difference. (3) Time to onset after exposure: The median onset time after exposure to index patients was 7 days in the observation group and 4 days in the control group, with a statistically significant difference (P<0.05). ConclusionIn previously healthy children exposed to infectious influenza cases under unprotected conditions, Xiaoji Hufei formula prophylaxis significantly reduced the incidence of ILI. Xiaoji Hufei Formula can be recommended as a specific preventive prescription for influenza in children.
5.Prediction of lung hemorrhage after microwave ablation in stage ⅠA non-small cell lung cancer patients
Jingshuo LI ; Shengmei MA ; Haipeng JIA ; Yuxian CHEN ; Chunhai LI
Journal of Practical Radiology 2024;40(6):973-976
Objective To develop an nomogram model for predicting the lung hemorrhage after CT-guided microwave ablation(MWA)in stage ⅠA non-small cell lung cancer(NSCLC)patients.Methods Stage ⅠA NSCLC patients treated with MWA were randomly divided into a training group and a validation group in a 3∶1 ratio.The risk factors of lung hemorrhage identified by univariable and multivariable logistic regression analysis in the training group were used to develop a nomogram model.The C-statistic was used to evaluate the predictive accuracy in both the training and validation groups.Results A total of 208 patients(training group,156 cases;validation group,52 cases)were included in this study.The risk factors of lung hemorrhage after MWA were the number of vessels passing through the lung parenchyma[odds ratio(OR)=3.815;95%confidence interval(CI)1.485-9.800;P=0.005],number of focal blood supplies(OR=2.922;95%CI 1.198-7.126;P=0.018)and number of punctures(OR=2.802;95%CI 1.792-4.381;P<0.001).The C-statistic in training group was 0.928(95%CI 0.875-0.963)and the C-statistic in validation group was 0.906(95%CI 0.793-0.969).The optimal cut-off value for lung hemorrhage was 0.14.Conclusion The nomogram model can effectively predict the lung hemorrhage after MWA.Patients showing a high risk(>0.14)on the nomogram model should be monitored for lung hemorrhage.
6.Arthroscopic treatment for patients with borderline developmental dysplasia of the hip and cam-type femoroacetabular impingement syndrome
Yang LUO ; Jia ZHANG ; Jianping ZHANG ; Yidong WU ; Kangkang YU ; Haipeng LI ; Gang ZHAO ; Zhongli LI ; Yujie LIU ; Chunbao LI
Chinese Journal of Orthopaedics 2022;42(21):1416-1422
Objective:To evaluate the clinical outcomes of patients with borderline developmental dysplasia of the hip (BDDH) and cam-type femoroacetabular impingement syndrome (FAIS) after hip arthroscopy.Methods:Data were retrospectively reviewed for patients with BDDH and cam-type FAIS who underwent hip arthroscopy surgery from June 2017 to December 2019. A total of 32 patients were enrolled, with a mean age of 36.13±8.67 years (range, 20-50 years), including 15 males and 17 females. The preoperative lateral center-edge angle was 22.3°±1.6° (range 20.1°-24.7°), while the preoperative α angle was 64.1°±4.6° (range, 56.0°-69.8°). All patients were treated with arthroscopic limited acetabular plasty, labral repair, femoral osteoplasty, and capsular plication after excluding from external hip diseases by ultrasound-guided hip blocking test. The visual analogue scale (VAS), modified Harris Hip Scores (mHHS) and International Hip Outcome Tool-12 (iHOT-12) scores were used to evaluate the clinical effects.Results:All patients were followed up, and the mean follow-up time was 2.5±0.8 years (range, 2.0-4.7 years). The VAS score decreased from 6.07±1.56 to 1.96±0.92 at 1 year and to 1.86±1.01 at 2 years after operation ( F=112.64, P<0.001); the mHHS score increased from 53.87±13.04 to 86.12±8.64 at 1 year and to 88.71±8.15 at 2 years after operation ( F=101.70, P<0.001); the iHOT-12 score was improved from 40.00±7.33 to 76.27±9.50 at 1 year and to 78.67±10.31 at 2 years after operation ( F=134.91, P<0.001). The α angle improved to 40.27°±4.52° (range, 34.8°-49.7°) with significant difference ( t=9.24, P<0.001). Conclusion:Hip arthroscopy can achieve satisfied short-term outcomes in treating BDDH and cam-type FAIS with few complications and less trauma.
7.Evaluation of the performance of systems for whole blood C-reactive protein detection: a multi-center study
Juan CHENG ; Huaiyuan LI ; Haipeng LIU ; Yuxin WANG ; Jin XU ; Shangyang SHE ; Wei QU ; Yidong WU ; Guixia LI ; Junmei YANG ; Liya MO ; Yun XIANG ; Jiangwei KE ; Liyue KUI ; Lei ZHENG ; Hongbing CHEN ; Zhili YANG ; Xin LYU ; Hong ZHANG ; Zhenhua TANG ; Lijuan MA ; Hongquan LUO ; Xiangyang LI ; Wenli ZHANG ; Hui JIA ; Huiming YE ; Lijun TIAN ; Qiuhui PAN
Chinese Journal of Laboratory Medicine 2021;44(7):633-643
Objective:To explore the performance of the commonly used whole blood C-reactive protein (CRP) detection systems and give related recommendation on the performance requirements of detection systems.Methods:A total of 7 540 venous blood samples from 26 maternal, child and children′s hospitals were collected to conduct this multi-center study on the analytical performance of 5 commonly used whole blood CRP detection systems from March to April in 2019. The blank check, carryover, repeatability, intermediate precision, linearity, sample stability, influence of hematocrit/triglyceride/bilirubin, comparison with SIEMENS specific protein analyzer and trueness were evaluated. The 5 systems included BC-5390CRP autohematology analyzer, AstepPLUS specific protein analyzer, Ottoman-1000 Automated Specific Protein POCT Workstation, i-CHROMA Immunofluorometer equipment Reader and Orion QuikRead go detecting instrument. The 5 systems were labeled as a, b, c, d and e randomly.Results:Within the 5 systems, all values of blank check were less than 1.00 mg/L, the carryovers were lower than 1.00%. The repeatability of different ranges of CRP concentrations including 3.00-10.00, 10.00-30.00 and>30.00 mg/L were less than 10.00%, 6.00% and 5.00%, respectively, and the intermediate precision was less than 10.00%. The linearity correlation coefficients of the 5 systems were all above 0.975, while the slope was within 0.950-1.050. Whole blood samples were stable within 72 hours both at room temperature (18-25 ℃) and refrigerated temperature (2-8 ℃). The CRP results were rarely influenced by high triglyceride or bilirubin, except for the immmunoturbidimetric test based on microparticles coated with anti-human CRP F(ab) 2 fragments. When triglyceride was less than 15.46 mmol/L, the deviation of CRP was less than 10.00%. When bilirubin was less than 345.47 μmol/L, the deviation of CRP was less than 10.00%. CRP was more susceptible to Hct on the systems without Hct correction. The deviation of CRP between different Hct dilution concentration and 40% dilution concentration can reach as high as 67.48%. The correlation coefficients ( r) of 5 systems were all more than 0.975 in the range of 0-300.00 mg/L compared with Siemens specific protein analyzer. All systems passed the trueness verification using the samples with specified values of 12.89 and 30.60 mg/L. Conclusion:The performance of 5 systems can basically meet the clinical needs, but it is suggested that the whole blood CRP detection system without automatic Hct correction should be modified manually.
8.Intervention effect of adaptive computerized cognitive training in patients with mild cognitive impairment
Dan YUAN ; Haipeng WANG ; Yingpeng WANG ; Weilan ZHEN ; Ying WANG ; Jia XUE
Chinese Journal of Behavioral Medicine and Brain Science 2021;30(7):584-590
Objective:To investigate the effect of the adaptive computerized cognitive training(ACCT) on patients with mild cognitive impairment(MCI).Methods:A total of 114 patients with mild cognitive impairment (53 cases in the treatment group and 61 cases in the observation group) were selected.In the treatment group, routine treatment combined with ACCT were given for 24 weeks, then routine treatment only for 24 weeks, 48 weeks altogether. In the observation group, routine treatment was given for 48 weeks.At week 0, 24, 48, both groups were assessed by scales including: mini-mental state examination (MMSE), Montreal cognitive assessment(MoCA), numerical memory span test, activities of daily living, Hamilton depression scale(HAMD)and Hamilton anxiety scale(HAMA). SAS 9.4 was used for statistical analysis.The data were analyzed by χ 2 test, rank sum test and multi-level model analysis. Results:Interactions between group and time on MMSE( treatment group: 0 week 22.0 (21.0, 23.0), 24 weeks 24.0 (24.0, 25.0), 48 weeks 25.0 (24.0, 26.0); observation group: 0 week 23.0 (21.0, 24.0), 24 weeks 23.0 (21.0, 24.0), 48 weeks 23.0 (21.0, 24.0)), MoCA( treatment group: 0 week 18.0 (17.0, 20.0), 24 weeks 22.0 (20.0, 23.0), 48 weeks 22.0 (20.0, 24.0); observation group: 0 week 19.0 (17.0, 20.0), 24 weeks 19.0 (18.0, 20.0), 48 weeks 19.0 (18.0, 20.0)), IADL( treatment group: 0 week 11.0 (10.0, 13.0), 24 weeks 12.0 (10.0, 12.0), 48 weeks 12.0 (10.0, 12.0); observation group: 0 week 12.0 (11.0, 13.0), 24 weeks 11.0 (10.0, 12.0), 48 weeks 11.0 (10.0, 12.0)), DST-forwards and HAMD scores were significant(all P<0.05), and DST-backwards had significant group main effect ( P<0.05). Further simple effect analysis showed that the influence of group and time on MMSE, MoCA and DST-forwards were statistically significant (all P<0.05), and the influence of time on IADL and HAMD were statistically significant (both P<0.05). Further comparison of the difference between the two groups at each time point: D-value of MMSE, MoCA, DST-forwards, and DST-backwards score in the treatment group were higher than those in the observation group, while D-value of HAMD score was lower than that in the observation group, and the differences were statistically significant (all P<0.05). Conclusion:ACCT may have long term effect on improving the cognitive function and depression of MCI patients.
9.Association between availability of glucose-lowering drugs in primary health institutions and diabetes patients' medication adherence:a cross-sectional study in Shandong Province,China
Yao JIANSEN ; Wang HAIPENG ; Shao DI ; Yin JIA ; Guo XIAOLEI ; Yin XIAO ; Sun QIANG
Global Health Journal 2021;5(2):83-89
Background:Primary health care system is a critical component of diabetes care and management.This article aimed to analyze the availability of glucose-lowering drugs in primary health institutions (PHIs) in China,and to explore the relationship between availability of glucose-lowering drugs and medication adherence among type 2 diabetes mellitus (T2DM) patients.Methods:This cross-sectional study conducted in Shandong Province,eastern China (hereafter referred to as Shandong),between August and December 2017.In total,2520 community-managed T2DM patients were se-lected from 68 PHIs in Shandong,including 62 village-level and 6 township-level PHIs.The self-developed ques-tionnaire was used to survey the availability of glucose-lowering drugs in PHIs.Patients' medication adherence was assessed by four self-reported questions,and was classified as either adherent or non-adherent.Descriptive statistics was used to analyze the availability of glucose-lowering drugs in PHIs and the medication adherence among the T2DM patients.Multilevel logistic regression models were used to explore the relationship between the availability of glucose-lowering drugs in PHIs and patients' medication adherence.Results:A total of 1866 T2DM patients prescribed with at least one glucose-lowering drug were included in analysis.Among them,58.5% patients followed their antidiabetic treatment well.In village-level PHIs,the pa-tient's adherence rate was lower than in township-level PHIs (55.9% vs.61.1%,P < 0.05).Among the 68 PHIs,average (2.53±0.97) glucose-lowering products (generic names) were available,which in village-level PHIs were less than in township-level PHIs (2.47 vs.3.17,P < 0.05).And the number of available glucose-lowering products in PHIs was associated with the adherence of T2DM patients.Conclusion:Poor availability of glucose-lowering products was found in PHIs in Shandong.The availability of glucose-lowering products in PHIs was positively associated with patients' medication adherence,and could be enhanced to improve the control of diabetes in primary care settings.
10.Contrast-enhanced CT findings of papillary renal cell carcinoma and its subtypes and chromophobe renal cell carcinoma
Qian SU ; Xiangqiang MIN ; Lianxin ZHAO ; Haipeng JIA ; Dexin YU
Journal of Practical Radiology 2018;34(2):249-252
Objective To investigate the enhanced CT features of papillary renal cell carcinoma (PRCC)and its subtypes (PRCC-Ⅰ, PRCC-Ⅱ)and chromophobe renal cell carcinoma(CRCC).Methods The CT features of 30 tumors with pathologically proved PRCC and CRCC were analyzed retrospectively,including location,size,enhanced types,calcification and necrosis etc.The differences in the CT features among PRCC and its subtypes and CRCC were evaluated.Results 1 2 cases of PRCC with single lesion (7 in the right kidney and 5 in the left)were shown;1 case was multifocal PRCC with 1 lesion in the right kidney and 2 lesions in the left.1 5 cases of CRCC were single lesion(9 in the right kidney and 6 in the left).The medium tumor maximum size of CRCC was larger than that of PRCC,and the PRCC-Ⅰ tumors tended to be smaller than PRCC-Ⅱ ones.53% of the PRCC had heterogeneous enhancement,and all calcification and necrosis were found in PRCC-Ⅱ lesions.Of all the CRCC,27% had uniform enhancement,20% had calcification and 40% had necrosis or central scar.There was no significant difference between PRCC and its subtypes and CRCC in location, maximum size,heterogeneity,calcification,necrosis and central scar.The degree of enhancement of CRCC(89.53 HU)was significantly greater than that of PRCC(66.60 HU),PRCC-Ⅰ(71.75 HU)and PRCC-Ⅱ(64.73 HU)in the cortical phase(P<0.05).The enhancement peak in the nephrographic phase was CRCC,PRCC-Ⅰ,PRCC and PRCC-Ⅱ from high to low in turn,which were all higher than that in cortical phase.In the excretory phase,the enhancement of all lesions was declined.Conclusion Contrast-enhanced CT is of certain value in the differential diagnosis among PRCC and its subtypes and CRCC.The enhancement degree of CRCC in the cortical phase is significantly greater than that of PRCC and its subtypes.The enhancement peak of PRCC and its subtypes and CRCC appears in the nephrographic phase.

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