Objective The aim of this study was to evaluate the additional benefit of the difference of maximum and minimum shear wave velocity(SWV) values obtained at different probe orientations(D-value) for the differential di...Objective The aim of this study was to evaluate the additional benefit of the difference of maximum and minimum shear wave velocity(SWV) values obtained at different probe orientations(D-value) for the differential diagnosis of breast tumors.Methods SWV(m/s) was measured in 123 breast tumors(92 benign,31 malignant) in 76 female patients with the probe placed on the transverse,longitudinal,and 45° planes.The areas under the receiver operating characteristic(AUROC) curves were compared with respect to the maximum SWV,minimum SWV,D-value,maximum SWV combined with the D-value,and minimum SWV combined with the D-value.Results There was a significant difference among the values of the maximum SWV,minimum SWV,and D-value for the 3 planes(P < 0.001).The AUROC curves for the maximum SWV,minimum SWV,and D-values of the 3 planes were 0.751(P = 0.379),0.486(P = 0.863),and 0.603(P = 0.204),respectively.The cutoff value for the maximum SWV for differentiating benign tumors from malignant tumors was 2.51 m/s(sensitivity 67%,specificity 50%).The cutoff value for the minimum SWV was 1.61 m/s(sensitivity 53%,specificity 50%).Adding the D-value increased the AUROC curve for the maximum SWV from 0.571 to 0.733 and the minimum SWV from 0.486 to 0.504(P = 0.964),respectively.Conclusion SWV differs in different planes of breast tumors.The D-value can provide a reference for the differential diagnosis of breast tumors.展开更多
Objective The aim of the study was to evaluate the long-term efficacy and safety of percutaneous microwave ablation(MWA) for small hepatic cancers adjacent to large vessels and to investigate the treatment strategies....Objective The aim of the study was to evaluate the long-term efficacy and safety of percutaneous microwave ablation(MWA) for small hepatic cancers adjacent to large vessels and to investigate the treatment strategies.Methods From March 2009 to July 2015,a total of 86 patients with 94 tumors underwent ultrasound(US)-guided percutaneous MWA,with pathologically proven or clinically diagnosed liver cancers measuring ≤ 3 cm in diameter and located ≤ 10 mm from a major vessel(n = 94).Regular follow-up after MWA was performed to assess treatment efficacy and perioperative complications.Results The complete ablation rate at 1 month after MWA was 93.3%(84/90).The 6-,9-,12-,24-,36-,48-,60-,72-,and 84-month local recurrence rates were 2.4%,2.4%,3.7%,6.6%,8.4%,8.4%,8.4%,8.4%,and 8.4%,respectively.There were no major complications.The perioperative special complication rate was 5.32%(5/94),including 3 cases of moderate liver function damage and 2 cases of limited sub-capsular hematoma.Conclusion Percutaneous MWA for small hepatic cancers adjacent to large vessels is feasible,effective,and safe with an acceptable rate of complications.The key point is to strictly follow operative indications and adopt proper treatment strategies.展开更多
Objective The aims of this study were to analyze ultrasound features of breast ductal carcinoma in situ(DCIS) and to evaluate the value of ultrasonography(US) in early diagnosis of DCIS.Methods From July 2013 to March...Objective The aims of this study were to analyze ultrasound features of breast ductal carcinoma in situ(DCIS) and to evaluate the value of ultrasonography(US) in early diagnosis of DCIS.Methods From July 2013 to March 2015,180 patients with histologically proven DCIS were evaluated.US features recorded included the size,shape,margins,internal echogenicity,microcalcifications,posterior echogenicity,and blood supply.The data were analyzed and compared with mammographic and histologic findings.Results Among 180 cases of DCIS,168 patients had positive findings on US;the lesions were divided into 3 categories:(1) hypoechoic lesions with or without microcalcifications(n=94);(2) hypoechoic dilated ducts with or without microcalcifications(n=59);(3) microcalcifications alone without any other findings(n=15).Of the 180 lesions,microcalcifications were demonstrated by mammography in 128(71%);among these 128 lesions,90 were identified with microcalcifications on US.Only 80 cases(44%) manifested as masses or asymmetric densities on mammography.The diagnostic accuracy of US and mammography was 67%(120/180) and 69%(124/180),respectively,which can be improved to 80%(144/180) if US is combined with mammography.Conclusion US can be used as an important tool in diagnosis of DCIS.The combination of US and mammography can improve the diagnostic accuracy of breast DCIS.展开更多
Breast cancer is one of the most common malignantdiseases among women worldwide. In China, themorbidity and mortality rate from breast cancer hasincreased significantly in recent years. Early diagnosis iscrucial to en...Breast cancer is one of the most common malignantdiseases among women worldwide. In China, themorbidity and mortality rate from breast cancer hasincreased significantly in recent years. Early diagnosis iscrucial to ensure the best possible prognosis. Biopsy is aninvasive technique and not recommended for screening.展开更多
Nanomedicine-assisted sonodynamic therapy(SDT)has emerged as one of the most promising cancer therapies due to its unique advantages of high pene-tration,non-radiation,and excellent oxidative stress effect,but has alw...Nanomedicine-assisted sonodynamic therapy(SDT)has emerged as one of the most promising cancer therapies due to its unique advantages of high pene-tration,non-radiation,and excellent oxidative stress effect,but has always suffered from the self-protection mechanism and apoptosis resistance char-acteristics of evolutionarily mutated cancer cells.Regulated cell death(RCD)has received increasing attention in precision cancer treatments because of its significant role in synergistically sensitizing apoptosis and reversing the immunosuppressive microenvironment during SDT nanomedicine-triggered immunogenic cell death.Herein,paradigmatic research of RCD-augmented sonodynamic tumor immunotherapeutics are typically introduced,such as autophagy blockade,ferroptosis targeting,pyroptosis induction,necroptosis initiation,cuproptosis actuation,PANoptosis trigger,and the coordinated anti-tumor mechanisms are discussed in detail.Multiple analysis focusing on the currently unsolved problems and future development prospects of RCD-based SDT nano-oncology medicine are also discussed and prospected to further strengthen and expand the scope of its therapeutic applications.展开更多
基金Supported by a grant from the National Natural Sciences Foundation of China(No.81571695)
文摘Objective The aim of this study was to evaluate the additional benefit of the difference of maximum and minimum shear wave velocity(SWV) values obtained at different probe orientations(D-value) for the differential diagnosis of breast tumors.Methods SWV(m/s) was measured in 123 breast tumors(92 benign,31 malignant) in 76 female patients with the probe placed on the transverse,longitudinal,and 45° planes.The areas under the receiver operating characteristic(AUROC) curves were compared with respect to the maximum SWV,minimum SWV,D-value,maximum SWV combined with the D-value,and minimum SWV combined with the D-value.Results There was a significant difference among the values of the maximum SWV,minimum SWV,and D-value for the 3 planes(P < 0.001).The AUROC curves for the maximum SWV,minimum SWV,and D-values of the 3 planes were 0.751(P = 0.379),0.486(P = 0.863),and 0.603(P = 0.204),respectively.The cutoff value for the maximum SWV for differentiating benign tumors from malignant tumors was 2.51 m/s(sensitivity 67%,specificity 50%).The cutoff value for the minimum SWV was 1.61 m/s(sensitivity 53%,specificity 50%).Adding the D-value increased the AUROC curve for the maximum SWV from 0.571 to 0.733 and the minimum SWV from 0.486 to 0.504(P = 0.964),respectively.Conclusion SWV differs in different planes of breast tumors.The D-value can provide a reference for the differential diagnosis of breast tumors.
文摘Objective The aim of the study was to evaluate the long-term efficacy and safety of percutaneous microwave ablation(MWA) for small hepatic cancers adjacent to large vessels and to investigate the treatment strategies.Methods From March 2009 to July 2015,a total of 86 patients with 94 tumors underwent ultrasound(US)-guided percutaneous MWA,with pathologically proven or clinically diagnosed liver cancers measuring ≤ 3 cm in diameter and located ≤ 10 mm from a major vessel(n = 94).Regular follow-up after MWA was performed to assess treatment efficacy and perioperative complications.Results The complete ablation rate at 1 month after MWA was 93.3%(84/90).The 6-,9-,12-,24-,36-,48-,60-,72-,and 84-month local recurrence rates were 2.4%,2.4%,3.7%,6.6%,8.4%,8.4%,8.4%,8.4%,and 8.4%,respectively.There were no major complications.The perioperative special complication rate was 5.32%(5/94),including 3 cases of moderate liver function damage and 2 cases of limited sub-capsular hematoma.Conclusion Percutaneous MWA for small hepatic cancers adjacent to large vessels is feasible,effective,and safe with an acceptable rate of complications.The key point is to strictly follow operative indications and adopt proper treatment strategies.
基金Supported by a grant from the National Natural Sciences Foundation of China(No.81571695)
文摘Objective The aims of this study were to analyze ultrasound features of breast ductal carcinoma in situ(DCIS) and to evaluate the value of ultrasonography(US) in early diagnosis of DCIS.Methods From July 2013 to March 2015,180 patients with histologically proven DCIS were evaluated.US features recorded included the size,shape,margins,internal echogenicity,microcalcifications,posterior echogenicity,and blood supply.The data were analyzed and compared with mammographic and histologic findings.Results Among 180 cases of DCIS,168 patients had positive findings on US;the lesions were divided into 3 categories:(1) hypoechoic lesions with or without microcalcifications(n=94);(2) hypoechoic dilated ducts with or without microcalcifications(n=59);(3) microcalcifications alone without any other findings(n=15).Of the 180 lesions,microcalcifications were demonstrated by mammography in 128(71%);among these 128 lesions,90 were identified with microcalcifications on US.Only 80 cases(44%) manifested as masses or asymmetric densities on mammography.The diagnostic accuracy of US and mammography was 67%(120/180) and 69%(124/180),respectively,which can be improved to 80%(144/180) if US is combined with mammography.Conclusion US can be used as an important tool in diagnosis of DCIS.The combination of US and mammography can improve the diagnostic accuracy of breast DCIS.
文摘Breast cancer is one of the most common malignantdiseases among women worldwide. In China, themorbidity and mortality rate from breast cancer hasincreased significantly in recent years. Early diagnosis iscrucial to ensure the best possible prognosis. Biopsy is aninvasive technique and not recommended for screening.
基金This work was supported by the Science and Technology Development Fund,Macao SAR(File No.:0032/2023/ITP1)the Ministry of Education Frontiers Science Centre for Precision Oncology,University of Macao(SP2023-00001-FSCPO and FHS-FSCPO/011/2023)the National Natural Science Foundation of China(82302369).
文摘Nanomedicine-assisted sonodynamic therapy(SDT)has emerged as one of the most promising cancer therapies due to its unique advantages of high pene-tration,non-radiation,and excellent oxidative stress effect,but has always suffered from the self-protection mechanism and apoptosis resistance char-acteristics of evolutionarily mutated cancer cells.Regulated cell death(RCD)has received increasing attention in precision cancer treatments because of its significant role in synergistically sensitizing apoptosis and reversing the immunosuppressive microenvironment during SDT nanomedicine-triggered immunogenic cell death.Herein,paradigmatic research of RCD-augmented sonodynamic tumor immunotherapeutics are typically introduced,such as autophagy blockade,ferroptosis targeting,pyroptosis induction,necroptosis initiation,cuproptosis actuation,PANoptosis trigger,and the coordinated anti-tumor mechanisms are discussed in detail.Multiple analysis focusing on the currently unsolved problems and future development prospects of RCD-based SDT nano-oncology medicine are also discussed and prospected to further strengthen and expand the scope of its therapeutic applications.
