1.Survey on natural language processing in medical image analysis.
Zhengliang LIU ; Mengshen HE ; Zuowei JIANG ; Zihao WU ; Haixing DAI ; Lian ZHANG ; Siyi LUO ; Tianle HAN ; Xiang LI ; Xi JIANG ; Dajiang ZHU ; Xiaoyan CAI ; Bao GE ; Wei LIU ; Jun LIU ; Dinggang SHEN ; Tianming LIU
Journal of Central South University(Medical Sciences) 2022;47(8):981-993
Recent advancement in natural language processing (NLP) and medical imaging empowers the wide applicability of deep learning models. These developments have increased not only data understanding, but also knowledge of state-of-the-art architectures and their real-world potentials. Medical imaging researchers have recognized the limitations of only targeting images, as well as the importance of integrating multimodal inputs into medical image analysis. The lack of comprehensive surveys of the current literature, however, impedes the progress of this domain. Existing research perspectives, as well as the architectures, tasks, datasets, and performance measures examined in the present literature, are reviewed in this work, and we also provide a brief description of possible future directions in the field, aiming to provide researchers and healthcare professionals with a detailed summary of existing academic research and to provide rational insights to facilitate future research.
Humans
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Natural Language Processing
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Surveys and Questionnaires
2.Clinical efficacy of combined transverse upper gracilis flap and adductor magnus perforator flap in breast reconstruction
Dajiang SONG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG
Chinese Journal of Medical Aesthetics and Cosmetology 2021;27(1):29-33
Objective:To explore the necessity of combined transverse upper gracilis flap and adductor magnus perforator flap in breast reconstruction.Methods:From December 2016 to February 2019, 16 female breast cancer patients, aged 27-59 years, with an average of 40.3 years, were treated in the Department of Oncoplastic Surgery, Hunan Cancer Hospital. The tumors were unilateral in 9 cases on the left side and 7 cases on the right side, with a diameter of 1.5-4.5 (2.9±0.3) cm, and all of them were stage I. Pathological diagnosis included 9 cases of invasive ductal carcinoma and 7 cases of invasive lobular carcinoma. After the modified radical mastectomy, the medial thigh perforator flap was used to reconstruct the breast. Patients were randomly divided into group A and group B. In group A, the gracilis myocutaneous flap combined with the adductor magnus perforator flap was elevated. In group B, the adductor magnus perforator flap with large size reaching the front edge of gracilis muscle was directly harvested. After all the flaps were harvested with only one major adductor perforator as vascular pedicle, ICG fluorescence imaging technology was used to verify the blood supply of the flaps.Results:Eight cases of gracilis myocutaneous flap combined with adductor magnus perforator flap and 8 cases of adductor magnus perforator flap were transplanted, The length, width and thickness of the flaps were (27.5±0.4) cm, (7.1±0.5) cm and (3.8±0.4) cm, (7.4±0.3) cm and (10.8±0.5) cm respectively. The average weight of the flap was 255 g (195 g-315 g). The mean ischemia time was 75 min (55-90 min). In 16 cases, the proximal and distal ends of internal mammary vessels were used as the recipient vessels. Only anastomosing the adductor magnus perforator vessels could ensure the reliable blood supply of the flap. All flaps survived successfully in one stage. The appearance of reconstructed breast was good and there was no obvious flap contracture and deformation. 16 cases were followed up for an average of 12.5 months, and the patients' self perception and appearance were satisfactory. Only hidden linear scar was left on the donor site of the medial thigh flap, and the function of hip joint and leg was not affected.Conclusions:Large size of medial thigh perforator flap pedicled with the perforator of adductor magnus can be safely and reliably cut with no needing additional harvest of gracilis muscle vascular pedicle.
3.Study on the effect of peer support education on family function of breast reconstruction patients after breast cancer surgery
Cuie PENG ; Zan LI ; Bo ZHOU ; Chunliu LYU ; Huangxing MAO ; Peng WU ; Dajiang SONG ; Qingxia WANG ; Wen PENG ; Xin CAI
Chinese Journal of Practical Nursing 2021;37(6):410-416
Objective:To investigate the effect of peer support education on family function of breast cancer patients with breast reconstruction.Methods:Totally 146 patients who received surgical treatment in the department of plastic surgery for breast cancer from June 2017 to June 2019 were randomly divided into the experimental group and the control group by the method of random number table, 73 cases each. The control group received routine education. Patients in the observation group received regular education and peer support education. The intervention time was from admission to 6 months after discharge, and the control group received routine nursing care. Quality of life questionnaire was used to evaluate the quality of life of the patients at six months after operation, family care index questionnaire was used to evaluate the family function of the patients, and comprehend social support scale was used to evaluate the level of social support, then various indicators of the two groups of patients were compared.Results:6 months after operation, the scores of quality of life function and symptom dimension of the intervention group were 6.43±1.54. 5.83±1.47, while control group were 6.02±1.59; 6.39±1.63. There were statistically significant differences between the two groups ( t values were 4.30, 5.01, P < 0.05); family care scores of the two groups were compared, the intervention group was 8.78±2.04. The control group was 8.43±2.05. There were statistically significant differences between the two groups ( t value was 2.02, P < 0.05); the comprehension support score of the two groups was compared, and that of the intervention group was 62.24±14.81. The control group was 55.74±13.58. There were statistically significant differences between the two groups ( t value was 4.26, P < 0.05). Conclusion:Peer support education can improve the quality of life and family care of breast cancer patients with breast reconstruction.
4.Deep inferior epigastric artery perforator flap transferred for breast reconstruction salvage after failed tissue expander implantation
Dajiang SONG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG
Chinese Journal of Plastic Surgery 2021;37(7):719-725
Objective:To present the authors’experience using a deep inferior epigastric artery perforator (DIEP) flap for the salvage of tissue expander implantation failed breast reconstruction.Methods:A retrospective study was conducted of all patients who underwent breast reconstruction salvaged by means of a DIEP flap because of failed tissue expander implantation in the Department of Oncology Plastic Surgery of Hunan Province Cancer Hospital from July 2016 to January 2019. Flap survival, breast shape, wound healing and abdominal wall function were reviewed.Results:A total of 13 patients, female, 28 to 53 years old, were included in this study. All the patients had undergone modified mastectomy and failed tissue expander implantation before, and the expanders were removed because of infection in 3 cases, the capsule contracture and displacement in 4 cases and patients feeling uncomfortable and refused prosthesis implantation in 6 cases. Unilateral reconstruction was performed in all cases, 8 cases of left breast and 5 cases of the right. Thirteen free DIEP flaps were harvested. The length, width and thickness of DIEP flap were (25.5 ± 0.6) cm, (12.6 ± 0.4) cm and (5.9 ± 0.7) cm respectively, and the length of vascular pedicle was (11.3 ± 0.4) cm. The average weight of the flap was 435 g (390-510 g). The average operation time was 440 min (390-560 min). The proximal end of internal mammary vessels were used as the recipient vessels in 6 cases, the proximal and distal end of internal mammary vessels were used as the recipient vessels in 4 cases, the thoracodorsal vessels in 2 cases and combined the thoracodorsal vessels and the proximal end of internal mammary vessels in 1 case. All flaps survived successfully. The average follow-up period was 16.5 months (range, 12-39 months). The appearance and texture of reconstructed breast were good, and there was no flap contracture and deformation. Only concealed linear scar was left in the donor site. The motor function of abdominal wall was not limited.Conclusions:Salvaging failed tissue expander implantation breast reconstruction using DIEP flap is safe and efficient, with satisfying breast appearance and low complication rate.
5.Deep inferior epigastric artery perforator flap transferred for breast reconstruction salvage after failed tissue expander implantation
Dajiang SONG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG
Chinese Journal of Plastic Surgery 2021;37(7):719-725
Objective:To present the authors’experience using a deep inferior epigastric artery perforator (DIEP) flap for the salvage of tissue expander implantation failed breast reconstruction.Methods:A retrospective study was conducted of all patients who underwent breast reconstruction salvaged by means of a DIEP flap because of failed tissue expander implantation in the Department of Oncology Plastic Surgery of Hunan Province Cancer Hospital from July 2016 to January 2019. Flap survival, breast shape, wound healing and abdominal wall function were reviewed.Results:A total of 13 patients, female, 28 to 53 years old, were included in this study. All the patients had undergone modified mastectomy and failed tissue expander implantation before, and the expanders were removed because of infection in 3 cases, the capsule contracture and displacement in 4 cases and patients feeling uncomfortable and refused prosthesis implantation in 6 cases. Unilateral reconstruction was performed in all cases, 8 cases of left breast and 5 cases of the right. Thirteen free DIEP flaps were harvested. The length, width and thickness of DIEP flap were (25.5 ± 0.6) cm, (12.6 ± 0.4) cm and (5.9 ± 0.7) cm respectively, and the length of vascular pedicle was (11.3 ± 0.4) cm. The average weight of the flap was 435 g (390-510 g). The average operation time was 440 min (390-560 min). The proximal end of internal mammary vessels were used as the recipient vessels in 6 cases, the proximal and distal end of internal mammary vessels were used as the recipient vessels in 4 cases, the thoracodorsal vessels in 2 cases and combined the thoracodorsal vessels and the proximal end of internal mammary vessels in 1 case. All flaps survived successfully. The average follow-up period was 16.5 months (range, 12-39 months). The appearance and texture of reconstructed breast were good, and there was no flap contracture and deformation. Only concealed linear scar was left in the donor site. The motor function of abdominal wall was not limited.Conclusions:Salvaging failed tissue expander implantation breast reconstruction using DIEP flap is safe and efficient, with satisfying breast appearance and low complication rate.
6.Conjoined bipedicle deep inferior epigastric perforator flap in reconstruction of unilateral breast
Dajiang SONG ; Zan LI ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG ; Liang YI ; Zhenhua LUO
Chinese Journal of Microsurgery 2020;43(5):441-445
Objective:To explore the clinical application of conjoined bipedicle deep inferior epigastric perforator flap (DIEP) in reconstruction of unilateral breast for patients with breast cancer.Methods:From August, 2007 to Feburary, 2017, 41 cases of breast cancer patients received conjoined bipedicle DIEP to reconstruct breasts at the same time of radial operation of mastocarcinoma or in the second phase. Their age ranged from 27 to 49 (34.5±2.7) years old. Twenty-two cases had one-staged and other 19 had two-staged breast reconstruction. All patients were in scheduled followed-up.Results:In this study, 41 conjoined bipedicle DIEP were harvested, including 12 of lateral branch type, 9 of medial branch type, and 20 of combined lateral and medial branch type. The length of flap was (24.5±0.5) cm, the width of flap was (10.8±2.8) cm, and the thickness of flap was(5.5±0.4) cm. The length of flap pedicle was (12.5±0.6) cm. The average weight of flap was 565 (ranged 365-1 050) g. The vascular combinations in the receiving area included: ①Eighteen cases of proximal and distal thoracic vessels. ②Eleven cases proximal ends of internal mammary vessels and lateral thoracic vessels. ③Eight cases of proximal ends of internal mammary vessels and thoracodorsal vessels. ④Four cases thoracodorsal vessels and lateral thoracic vessels. In 3 patients, in order to further promote the venous outflow of the flap, the superficial inferior epigastric vein of the flap was anastomosed with the thoracoacromial vein of the recipient area. All flaps were successful and completely survived without marginal necrosis or infection. The shape, texture and elasticity of the reconstructed breasts were good without flap contractive deformity. There were only linear scars left in the donor sites, and function of abdomen was not affected. All 41 patients were followed-up for 12 to 50 months, with an average of 15.8 months with satisfied results. No local recurrence happened. Only linear scar was left in the donor site of abdomen, and the function of abdominal wall was not affected. In all cases bilateral rectus abdominis muscle strength was level 5.Conclusion:The conjoined bipedicle DIEP could be a safe and valuable option as an alternative method for autologous breast reconstruction.
7.Effect of anteromedial thigh perforator flap on repair of defects caused by oral cancer surgery
Dajiang SONG ; Zan LI ; Yixin ZHANG ; Xiaowei PENG ; Guang FENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG ; Liang YI ; Zhenhua LUO
Chinese Journal of Medical Aesthetics and Cosmetology 2020;26(5):398-401
Objective:To introduce the advantages and clinical experience of relaying antero thigh flap in the resurfacing of the donor defect after anteromedial thigh (AMT) flap transfer for oral cancer defect reconstruction.Methods:The number, courses and location of antero thigh perforators were recorded in 6 adult specimens, (3 male and 3 female). Specimen was produced via femoral artery perfusion after joining lead oxide red setting, up to the inguinal ligament, down to the superior margin of patella, lateral to the lateral femoral intermuscular septum, medial near the lateral margin of adductor longus muscle. From February 2016 to December 2018 in Hunan Provincial Cancer Hospital, 13 cases (11 male and 2 female) with oral carcinoma (8 tongue carcinoma and 5 buccal cancer), leaving tongue or mouth defects which were reconstructed by free AMT perforator flaps.Results:All free AMT flaps were harvested smoothly, the flap size ranged from 7.5 cm×4.5 cm to 13.0 cm×7.5 cm, the donor sites were reconstructed with relaying ALT flaps in 10 cases, with relaying AMT flaps in 3 cases, the relaying ALT flap size ranged from 8.5 cm×5.0 cm to 18.0 cm×7.0 cm, the relaying AMT flap size ranged from 7.5 cm×4.0 cm to 15.0 cm×7.0 cm. All flaps survived uneventfully, no vascular crisis or wound dehiscence, infection occurred. All patients were followed up for 12~28 months, all flaps healed smoothly, only linear scar was left in the donor sites, the color, appearance and contour of flaps were natural, and the function of thighs were not affected.Conclusions:When it is difficult to elevate the free anterolateral thigh flap, the free anteromedial thigh flap can be used to repair the oral cancer defect. When the direct closure of the flap donor area is of big tension, the relaying antero flap can be used to reconstruct the donor site, minimize the operation time and improve the outcome.
8.Selection and effects of flap/myocutaneous flap repair methods for the defect after perineum tumor resection
Dajiang SONG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Guang FENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG ; Wen PENG ; Huangxing MAO ; Zeyang LIU ; Weiqing HAN ; Yile CHEN ; Dihong TANG ; Yanjie ZHOU ; Keqiang ZHANG
Chinese Journal of Burns 2020;36(6):451-457
Objective:To explore the selection and effects of flap/myocutaneous flap repair methods for the defect after perineum tumor resection.Methods:From January 2011 to February 2017, 31 patients with vulvar tumor who were admitted to Hunan Cancer Hospital underwent repair of wound after tumor resection with various flaps/myocutaneous flaps. The patients were composed of 5 males and 26 females, aged 39-76 years, with 27 vulvar cancer and 4 Paget′s disease in primary diseases. The size of defects after vulvar tumor radical resection ranged from 8.0 cm×4.5 cm to 27.5 cm×24.0 cm. According to the theory of perforasome, the defects were repaired by the external pudendal artery perforator flap, deep inferior epigastric artery perforator flap, rectus abdominis myocutaneous flap, anterolateral thigh flap, internal pudendal artery perforator flap, gracilis myocutaneous flap, and profunda artery perforator flap based on the specific size and location of perineum and groin where the defect was located. According to the blood supply zone of flap, totally 17 local translocation flaps, 18 axial flaps/myocutaneous flaps, and 7 V-Y advancement flaps were resected, with an area of 7.0 cm×4.0 cm to 21.0 cm×13.0 cm. All the flaps/myocutaneous flaps were transferred in pedicled fashion, and the donor sites were closed without tension. The number of flaps/myocutaneous flaps, wound closure, flaps/myocutaneous flaps survival, and follow-up were observed and recorded.Results:Altogether 42 flaps/myocutaneous flaps were harvested in 31 patients. Two flaps/myocutaneous flaps were used in 11 cases for large circular defect repair. All the defects achieved tension-free primary closure. The blood supply of 32 flaps/myocutaneous flaps was good, while insufficient blood supply was noted in the other 10 flaps/myocutaneous flaps. Seventeen flaps/myocutaneous flaps survived smoothly. Wound dehiscence occurred in 5 flaps/myocutaneous flaps 8 to 14 days postoperatively, which was healed with dressing change. Temporary congestion was noted in 7 flaps/myocutaneous flaps 2 to 5 days postoperatively, which recovered without special treatment. Three flaps/myocutaneous flaps had infection 7 to 15 days postoperatively, two of which recovered after dressing change, while the other one had partial necrosis and received debridement and direct closure. Two flaps/myocutaneous flaps were totally necrotic 8 to 15 days postoperatively, which were repaired with pedicled rectus abdominis myocutaneous flap after debridement. Seven flaps/myocutaneous flaps had partial necrosis 7 to 20 days postoperatively and were healed after dressing change. Twenty-four patients were followed up for 9-38 months. The color of flaps/myocutaneous flaps was similar to that of the surrounding skin, the shape of vulva was natural, the movement of hip joint was not limited, the function of micturition and defecation was not affected, and tumor recurrence was noted in 3 patients.Conclusions:For the complicated large defect after perineum tumor resection, the flexible application of different forms of flaps/myocutaneous flaps to repair according to different areas regains the appearance and function. However, there are many complications, so it is necessary to further strengthen the postoperative care.
9.A case of using profunda artery perforator flap as an intraoperative salvage for failed deep inferior epigastric artery perforator flap harvesting in autologous breast reconstruction
Dajiang SONG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG
Chinese Journal of Burns 2020;36(9):876-879
On April 11, 2019, a 36-year-old female patient was admitted to Hunan Cancer Hospital. Five years after the modified radical mastectomy for right breast cancer, she planned to undergo scar releasing and reconstruction of right chest wall and free deep inferior epigastric artery perforator (DIEP) flap transfer, right breast reconstruction, and left breast mastopexy. The defect of right chest wall after scar resection was 18 cm×10 cm. During the operation, the vascular pedicle of DIEP flap was accidentally injured, then the profunda artery perforator flap in left inner thigh was designed for salvage. The size of the flap was 20 cm×11 cm, the thickness was 4.5 cm, the length of perforator vessel pedicle was 7.6 cm, and the weight of the flap was 360 g. The right breast defect was repaired with the transferred flap and the deep cavity was filled. The vascular pedicle of profunda artery was anastomosed with the proximal end of the right internal mammary artery. The blood supply of the flap was good during surgery. The left breast mastopexy was completed at the same time, and the donor site of thigh and abdomen was closed directly. The flap survived well and the donor site healed well after surgery. During the follow-up of 7 months post surgery, the appearance and function of thigh donor site were good, no obvious complications were found, and the reconstructed breast was smaller than the contralateral side. This case suggests that the profunda artery perforator flap could be a valuable option as an alternative for DIEP harvesting failure for autologous breast reconstruction.
10.Anatomical classification and application of chimeric myocutaneous medial thigh perforator flap in head and neck reconstruction
Dajiang SONG ; Wen PENG ; Zan LI ; Xiao ZHOU ; Yixin ZHANG ; Xiaowei PENG ; Bo ZHOU ; Chunliu LYU ; Peng WU ; Yuanyuan TANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2020;55(5):483-489
Objective:To explore the anatomical classification and application of chimeric myocutaneous medial thigh perforator (MTP) flap in head and neck reconstruction.Methods:From September 2015 to December 2018, the clinical data of 74 patients (62 males and 12 females, age ranging from 31 to 69 years, with a mean age of 50.2 years) with oral tumor, who underwent radical resection in Hunan Cancer Hospital, including 39 cases of tongue carcinoma, 24 cases of gingival carcinoma and 11 cases of buccal cancer, 26 cases of stage T4N1M0, 22 cases of stage T4N0M0,15 cases of stage T3N1M0, and 11 cases of stage T3N2M0 were retrospectively analyzed in this work.The arteries and the veins contributing to MTP were anastomosed respectively with superior thyroid arteries, while the venae comitans were anastomosed with superior thyroid venae veins or internal jugular venae vein. The size of soft tissue defect, the length, width and thickness of free medial thigh flap, the length and source of vascular pedicle were recorded. The flap survival, functional status and donor area recovery were observed.Results:The postoperative defects in size ranged from 4.0 cm×3.5 cm to 9.0 cm×5.5 cm, which were reconstructed by free chimeric myocutaneous MTP flaps. The mean length of MTP flaps was (12.5±0.4) cm, the mean width was (7.2±0.4) cm, the mean thickness was (3.5±0.2) cm. The mean pedicle length was (8.6±0.4) cm. The perforators existed consistently in all cases, and the vascular origins were classified into 6 types. There were 4 cases (5.4%) of the perforating branches originating from femoral artery between the medial femoris and the adductor longus, 6 cases (8.1%) of the perforating branches of the profunda femoral artery from the adductor longus, 16 cases (21.6%) of the perforating branches of the profunda femoral artery from the gracilis, 9 cases (12.2%) of the perforating branches of the profunda femoral artery between the gracilis and the adductor longus, 29 cases (39.2%) of the perforating branches of the profunda femoral artery from the adductor longus, and 10 cases (13.5%) of branches of the profunda femoral artery from the semimembranous muscle. All 74 flaps survived uneventfully. The donor sites and recipient sites were closed directly in all cases. All patients were followed up for 12-36 months with satisfied esthetic and functional results. Only linear scars were left in the donor sites, and the thigh function was not affected. Local recurrence happened in 4 cases, which were treated with radical resection and the left defects were reconstructed with pedicled pectoral major myocutaneous flaps.Conclusion:The chimeric myocutaneous MTP flap has good color match and texture, with abundant tissue, and consistent blood supply, and it can be harvested in various forms while leaving minimal morbidity at donor site, being an idea choice for reconstruction after surgery of oral cancer.

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