超声全容积成像与弹性成像检查乳腺病灶的对比研究

[目的]探讨乳腺全容积成像(ABVS)、弹性成像(UE)对乳腺病灶良恶性鉴别诊断价值。[方法]应用ABVS、UE对82例患者的90个乳腺病灶进行超声检查,所以病例均经病理证实。[结果]良性38例共44个病灶,恶性44例共46个病灶,ABVS诊断乳腺肿瘤的灵敏度为91.3%,特异性为75.0%,准确性为83.3%,阳性预测值79.2%,阴性预测值89.2%;UE诊断乳腺肿瘤灵敏度为86.9%,特异性为97.7%,准确性为92.2%,阳性预测值97.6%,阴性预测值87.8%。[结论]ABVS、UE在乳腺病灶定性诊断上各有一定优势,UE诊断乳腺肿瘤特异性、准确性、阳性预测值高于ABVS。     

多模态超声检查在乳腺良恶性结节鉴别诊断中的应用

目的对比常规超声、弹性成像、容积成像及联合应用在乳腺良恶性结节鉴别诊断中的应用。方法选取2014年1月至2015年8月间广州中医药大学第一附属医院收治的经手术病理证实的214例乳腺结节患者,均采用超声检查,部分患者联合乳腺MR、钼靶检查,以旋切术等手术获得样本病理检验作为金标准。结果高频超声检出结节病灶230例,手术证实恶性结节84个,良性结节146个。联合诊断敏感性、特异性、阳性预测值、阴性预测值和符合率分别为98.8%、91.1%、86.5%、99.3%和93.9%,常规超声为84.5%、69.2%、61.2%、88.6%和74.8%,弹性超声为76.2%、84.9%、74.4%、86.1%和81.7%,三维容积成像为83.3%、80.8%、71.4%、89.4%和81.7%。联合诊断敏感性、特异性、阳性预测值、阴性预测值和符合率均高于常规超声、弹性超声和三维容积成像,差异均有统计学意义(均P<0.05)。结论常规超声、弹性超声和容积成像单独应用时诊断效用差异不大,各有优劣,联合应用时可提高诊断效用。     

超声造影联合弹性成像在乳腺良恶性结节鉴别诊断中的应用价值

[目的]评价超声造影联合弹性成像在乳腺良恶性结节鉴别诊断中的应用价值。[方法]对151个经手术病理证实的乳腺良恶性结节的超声造影和弹性成像特征进行对比分析,评估各诊断方法的敏感性、特异性及准确性。[结果]151个乳腺结节中,良性病灶110个,恶性病灶41个。在注射造影剂后良性结节多呈点状、线状和结节状增强,增强边界多平滑;恶性结节则大多以不均匀、高增强为主,且增强边界多数欠清或不清。良性结节的时间—强度曲线呈"缓升速降"或"速升速降"型;恶性结节呈"速升缓降"型。超声造影的敏感性、特异性及准确性分别为65.9%、94.5%、86.8%。弹性成像的敏感性、特异性及准确度分别为61.0%、91.8%、77.5%。超声造影联合弹性成像的敏感性、特异性及准确性分别为87.8%、95.5%、93.4%。[结论]超声造影联合弹性成像对乳腺良恶性结节的鉴别有较高的应用价值,可提高该病的诊断率。     

乳腺常规超声与超声造影对早期乳腺癌的诊断价值

目的探讨乳腺常规超声与超声造影对早期乳腺癌的诊断价值。方法选取2016年5月至2019年5月间西安交通大学第二附属医院收治的80例早期乳腺癌患者进行回顾性研究,所有患者分别进行常规超声检查和超声造影检查。分析良恶性乳腺肿瘤的特征,并与穿刺或术后病理结果进行比较,分析两种检测方法的诊断价值。结果超声造影结果提示,乳腺恶性肿瘤主要为不均匀增强及周边增强,乳腺良性肿瘤主要为无增强和均匀增强为主。33例患者经常规超声诊断,良性16例,恶性17例,其中误诊10例(4例误诊为良性,6例误诊为恶性); 47例患者经超声造影诊断,良性12例,恶性35例,其中误诊5例(良性误诊2例、恶性误诊3例)。常规超声诊断良恶性乳腺疾病的敏感性、特异性、阳性预测值和阴性预测值分别为64. 7%、75. 0%、73. 3%和66. 7%。超声造影诊断良恶性乳腺疾病的敏感性、特异性、阳性预测值和阴性预测值分别为94. 1%、76. 9%、91. 4%和83. 3%。超声造影的敏感度明显高于常规造影,差异有统计学意义(P <0. 05)。结论常规超声联合超声造影可提高早期乳腺癌的诊断敏感度,在早期乳腺癌的诊断以及良恶性肿瘤的鉴别诊断中有重要的临床应用价值。     

MRI多时相增强扫描对钼靶BI-RADS4级乳腺疾病的诊断价值

[目的]探讨MRI多时相增强扫描对BI-RADS4级(乳腺钼靶)病变的良恶性鉴别价值。[方法]对乳腺钼靶分级BI-RADS4级病变的80例患者行双侧乳腺平扫及多时相动态增强。通过对病灶MRI平扫及多时相增强图像进行分析判定病变良恶性。[结果]MRI诊断BI-RADS4级病变良恶性灵敏度及特异性分别为97.5%和95.0%,阳性预测值95.1%,阴性预测值97.4%。[结论]应用乳腺多时相增强MRI对于钼靶诊断为4级病变的鉴别诊断有重要作用。     

超声弹性成像与传统超声对乳腺实性小肿块鉴别诊断的对照研究

目的:对比超声弹性成像与传统超声对乳腺实性小肿块(直径≤20mm)良恶性的鉴别诊断。方法:对106例乳腺实性小肿块患者先行灰阶超声、彩色和频谱多普勒超声检查,再行实时超声弹性成像检查。弹性成像采用改良5分法进行评价,将超声诊断结果与病理结果进行对照。结果:以弹性评分4-5分为恶性预测标准,其诊断乳腺小肿块良、恶性的敏感性、特异性和准确性分别为:82.86%,97.18%,80.04%。传统超声诊断乳腺小肿块良、恶性的敏感性、特异性和准确性分别为:54.28%,87.32%,41.60%。两者准确性差异有统计学意义(P<0.01)。结论:超声弹性成像在乳腺实性小肿块良恶性病灶鉴别诊断方面的特异度及准确度优于传统超声。     

彩色多普勒超声与实时灰阶超声造影对乳腺肿瘤的诊断价值比较

目的 探讨实时灰阶超声造影与彩色多普勒超声对乳腺肿瘤的诊断价值。方法 对术前72名乳腺肿瘤患者进行彩色多普勒超声及实时灰阶超声造影检查,与病理结果进行对照分析乳腺良恶性肿瘤彩色多普勒超声及超声造影特征,比较两种方法的敏感性、特异性及诊断正确率。结果 (1)乳腺良恶性肿瘤彩色多普勒超声及超声造影特征不同,乳腺良性肿瘤多表现为0~Ⅰ级血流,RI＜0.7,而恶性以Ⅱ~Ⅲ级血流、RI≥0.7为主;乳腺良性肿瘤以等增强、均匀增强为主,恶性肿瘤以高增强、不均匀增强为主;(2)实时灰阶超声造影对乳腺肿瘤血供的敏感性(100%)明显高于彩色多普勒超声(79.2%);(3)彩色多普勒超声诊断乳腺肿瘤的敏感性、特异性、准确性分别为71.4%、80.0%、75.0%,Kappa值为0.50。超声造影诊断乳腺肿瘤的敏感性、特异性、准确性分别为76.2%、70.0%、73.6%,Kappa值为0.46。结论 实时灰阶超声造影对乳腺肿瘤血供的敏感性高,但对良恶性的鉴别意义并不优于彩色多普勒超声。     

声脉冲辐射力技术结合BIRADS分类在乳腺实性肿块鉴别诊断中的应用价值

目的:探讨声脉冲辐射力技术（ARFI）结合超声BIRADS分类在乳腺实性肿块良恶性鉴别中的应用价值。方法:对来我院检查诊断为乳腺实性肿块的82位患者,进行ARFI弹性成像和BIRADS分级,以病理结果为金标准,分别对ARFI结合BIRADS诊断肿块良恶性和单一运用ARFI及BIRADS诊断乳腺肿块良恶性的准确性进行统计学分析。结果:ARFI联合BIRADS分类诊断乳腺实性肿块良恶性的特异性、灵敏度、阳性预测值、阴性预测值、准确性各为96%、98.8%、96%、98.8%、98.1%,Kappa值为0.948,单用ARFI诊断乳腺实性肿块良恶性的特异性、灵敏度、阳性预测值、阴性预测值、准确性各为88%、96.3%、88%、96.3%、94.3%,Kappa值为0.843。单用BIRADS分类法诊断乳腺实性肿块良恶性的特异性、灵敏度、阳性预测值、阴性预测值、准确性各为84%、95.1%、84%、95.1%、92.5%,Kappa值为0.791。ARFI联合BIRADS分类诊断效能与较单独运用ARFI及BIRADS相比,差异有统计学意义（P＜0.05）。结论:AFRI联合BIRADS分类诊断肿块良恶性能提高诊断的准确性,值得推广。     

数字化乳腺摄片在乳腺疾病诊断中的运用价值研究

目的:探讨全数字化平板乳腺成像技术在乳腺疾病诊断中的运用价值.方法:2006年4月1日至2007年8月31日间手术的乳腺癌、乳腺囊肿、乳腺纤维瘤、乳管内乳头状瘤及乳腺腺病患者共350例,包括437个病灶.全数字化平板乳腺X线检查分级初步判断Ⅰ-Ⅲ级为良性,Ⅳ级-Ⅴ级为恶性,采用诊断性实验计算敏感性、特异性、准确性.结果:全数字化钼靶摄影的诊断敏感性为 88.56%(116/131),特异性为86.27%(264/306),阳性预测值为73.42%(116/158),阴性预测值为94.23%(264/279),准确性为86.96%(380/437).结论:全数字化钼靶摄影技术可大大提高乳腺疾病特别是早期乳腺癌的检出率.     

乳腺微小病变的X线及MRI对比研究

目的:对比分析乳腺微小病变MRI与X线征象,提高恶性病变早期检出率及诊断率。方法:回顾性研究94例乳腺患者共176处微小病灶的X线、MRI资料,对照影像诊断与病理结果,分析两种方法对乳腺微小病变的诊断价值。结果:病理良性病灶131处、恶性45处,两种检查手段的敏感性、特异性、准确度、阳性预测值、阴性预测值如下:X线71.11%、86.25%、82.38%、64.0%、89.68%;MRI:93.33%、95.41%、94.88%、87.5%、97.66%,X线与MRI诊断乳腺微小病变准确率差异存在统计学意义（χ2检验,P＜0.05）。结论:乳腺微小病变MRI诊断准确性高于乳腺X线摄影,DCE-MRI对早期无肿块型乳腺癌的诊断及敏感性、特异性较高,联合应用有助于提高早期检出率及诊断准确率。     

Diagnostic Performance of Breast MRI in the Evaluation of Contralateral Breast in Patients with Diagnosed Breast Cancer

Aims: The purpose of our study was to evaluate the diagnostic performance of breast magnetic resonance imaging (MRI) in the evaluation of contralateral breast  in patients with diagnosed breast cancer. A secondary objective was to determine accuracy of breast MRI in diagnosing multi-focal and multicentric lesions in the ipsilateral breast. Materials and Methods: Using a non-probability convenience sampling technique, patients with histopathologically diagnosed breast cancer with MRI of breast performed to exclude additional lesions were included. MRI findings were correlated with histopathology. In addition, follow-up imaging with mammography and ultrasound was also assessed for establishing stability of negative findings and for the detected of benign lesions. Results: Out of 157 MRI breast conducted during the period of 2008 to 2013, 49 were performed for patients with diagnosed breast cancer. The sample comprised of all females with mean age 50.7±11.0 years. The patient follow-up imaging was available for a period of 2-5 years. The sensitivity, specificity, and positive and negative predictive values of MRI in the detection of multifocal/multicenteric lesions was 85.7%, 88.8%, 60% and 96.6% respectively and for the detection of lesions in the contralateral breast were 100%, 97%, 83.3% and 100% respectively. Conclusions: Our study highlights the diagnostic performance and the added value of MRI in the detection of multifocal /multicenteric and contralateral malignant lesions. In patients with diagnosed breast cancer having dense breast parenchyma and with infiltrating lobular carcinoma as the index lesion MRI is particularly useful with excellent negative predictive value in the exclusion of additional malignant foci in the ipsilateral and contralateral breasts.     

The Clinical Utility of Automated Breast Volume Scanner: A Pilot Study of 139 Cases

Purpose

The aim of this study is to evaluate the clinical utility of automated breast volume scanner (ABVS) for detecting and diagnosing the breast lesions.

Methods

From December 2010 to January 2012, bilateral whole breast examinations were performed with ABVS for 139 women. Based on the Breast Imaging Reporting and Data System (BI-RADS) categories, the breast lesions were evaluated on coronal multiplanar reconstruction images using the ABVS workstation. Then, the imaging results were compared with those on conventional handheld ultrasound (HHUS) images. Histological diagnoses were performed on BI-RADS category 4 and 5 lesions.

Results

A total of 453 lesions were detected by ABVS. On the HHUS, 33 new lesions were detected but 69 lesions were not detected. BI-RADS category 2 and 3 matched to those on ABVS at 73.5% (61/83) and 85.4% (276/323). In 47 lesions of BI-RADS category 4 or 5, there was an exact match to those on ABVS. In addition, 47 lesions were classified as BI-RADS category 4 and 5, for which an ultrasound-guided core needle biopsy was performed. The malignant lesions of BI-RADS category 4 and 5 showed the following: 2/27 (7.4%) in 4A, 4/5 (80%) in 4B, 2/2 (100%) in 4C, and 13/13 (100%) in 5. The ABVS showed 21 true positives and a positive predictive value of 44.7% (21/47).

Conclusion

There was considerable agreement in the assessment of the breast lesions by ABVS and HHUS. The ABVS had advantages of high diagnostic accuracy, examiner-independence, multislice visualization of the whole breast and less time-consuming. Our results indicate that ABVS might be a useful modality in diagnosing breast lesions.     

超声弹性成像技术联合常规超声诊断乳腺癌的准确性

目的 研究超声弹性成像技术联合常规超声诊断乳腺肿瘤的准确性,分析易误诊病例的影像学特征.方法 回顾性分析301例乳腺肿物患者的临床病历资料,共322个病灶,所有患者均分别用常规超声和超声弹性成像技术进行检查,判断病灶的良恶性倾向,再经病理检查确认、随访.计算不同检查方法的灵敏度、特异度、诊断效率、阳性预测值、阴性预测值及漏诊率,以1-特异度为横轴,灵敏度为纵轴绘制ROC曲线.结果 病理检查良性病灶245个,恶性病灶77个;弹性成像技术联合常规超声诊断的特异度、诊断效率、阳性预测值、阴性预测值分别为93.47%、93.79%、82.02%、98.28%,均较常规超声、超声弹性成像技术单独诊断高.常规超声联合弹性成像技术诊断的灵敏度为94.81%,低于常规超声的96.10%.ROC曲线下面积,常规超声为0.814,VTI弹性成像技术为0.796,两者联合诊断为0.941.结论 超声弹性成像技术联合常规超声诊断乳腺癌的准确度较高,具有良好的应用价值,但临床普及前,诊断标准、规范和相关技术手段仍需完善.     

超声自动乳腺全容积成像与钼靶联合诊断乳腺肿瘤的价值

目的:评价超声自动乳腺全容积成像（ABVS）与钼靶X线对乳腺癌的诊断价值及其临床意义。方法:我院68例女性患者均经ABVS和钼靶X线检查证实存在乳腺肿块,其乳腺影像报告数据系统（BI-RADS）评估指标均在4到5级。经由手术或超声引导下穿刺活检取得标本,进行病理检查证实。其中乳腺癌62例;乳腺良性病变6例。将ABVS和钼靶X线检查的诊断资料进行数据收集并对比分析。结果:ABVS对乳腺癌的诊断准确率为86.76％;钼靶X线对乳腺癌的诊断准确率为76.47％;二者联合检查对乳腺癌的诊断准确率为91.18％。尽管使用ABVS检查对乳腺癌的诊断准确率稍高于钼靶X线,但二者差异无显著的统计学意义(P＞0.05),二者联合对乳腺癌的诊断准确率明显优于单纯采用ABVS或钼靶X线检查,差异有统计学意义(P＜0.05)。59例乳腺癌患者中,有48例在ABVS冠状切面上存在“火山口”征(81％)。结论:在乳腺癌的诊断过程中ABVS和钼靶X线各有其优势,若两种检查联合应用可提高其检出率和诊断准确率。ABVS冠状切面上“火山口”征对诊断乳腺癌具有较高价值。     

ABVS与钼靶诊断乳腺疾病的对照研究

目的 探讨超声自动全容积成像(automated breast volume scanner,ABVS)与钼靶对乳腺良、恶性肿块鉴别的价值.方法 选取女性乳腺肿块患者96例.患者接受钼靶及ABVS检查,均经穿刺活检或手术病理证实.分别计算其受试者工作特征(receiver operating characteristic,ROC)曲线下面积、敏感度、特异度、准确度、阳性预测值和阴性预测值.结果 96例患者共108个乳腺肿块,穿刺活检或术后病理检查显示,81个肿块为良性(75.0％),27个为恶性(25.0％).ABVS恶性肿块检出率为96.3％(26/27),高于钼靶的77.8％ (21/27),差异具有统计学意义(x2=4.103,P＜0.05).钼靶与ABVS检测恶性肿块的ROC曲线下面积分别为0.839和0.926,差异具有统计学意义(z=1.45,P＜0.05).ABVS火山口征诊断恶性肿块的敏感度为66.7％,特异度为100.0％,准确度为91.7％.结论 ABVS具有较高的临床应用价值.火山口征能够提高超声检测方法对乳腺恶性肿块的检出率.     

Comparison of Automated Breast Volume Scanning and Hand-Held Ultrasound in the Detection of Breast Cancer: an Analysis of 5,566 Patient Evaluations

Background: The purpose of this study was to compare the accuracy and effectiveness of automated breastvolume scanning (ABVS) and hand-held ultrasound (HHUS) in the detection of breast cancer in a large populationgroup with a long-term follow-up, and to investigate whether different ultrasound systems may influence theestimation of cancer detection. Materials and Methods: Institutional review board approval was obtained forthis retrospective study, and informed consent was waived. From September 2010 to August 2011, a total of1,866 ABVS and 3,700 HHUS participants, who underwent these procedures at our institute, were includedin this study. Cancers occurring during the study and subsequent follow-up were evaluated. The referencestandard was a combination of histology and follow-up imaging (≥12 months). The recall rate, cancer detectionyield, diagnostic accuracy, sensitivity, specificity, and positive (PPV) and negative (NPV) predictive values werecalculated with exact 95% confidence intervals. Results: The recall rate was 2.57 per 1,000 (48/1,866) for ABVSand 3.57 per 1,000 (132/3,700) for HHUS, with а significant difference (p=0.048). The cancer detection yieldwas 3.8 per 1,000 for ABVS and 2.7 per 1,000 for HHUS. The diagnostic accuracy was 97.7% for ABVS and96.5% for HHUS with statistical significance (p=0.018). The specificity of ABVS and HHUS were 97.8%, 96.7%,respectively (p=0.022). Conclusions: ABVS shows a comparable diagnostic performance to HHUS. ABVS is aneffective supplemental tool for mammography in breast cancer detection in a large population.     

Elastography for Breast Cancer Diagnosis: a Useful Tool for Small and BI-RADS 4 Lesions

The present study aimed at evaluating and comparing the diagnostic performance of B-mode ultrasound (US),elastography score (ES), and strain ratio (SR) for the differentiation of breast lesions. This retrospective studyenrolled 431 lesions from 417 in-hospital patients. All patients were examined with both conventional ultrasoundand elastography. Two experienced radiologists reviewed ultrasound and elasticity images. The histopathologicresult obtained from ultrasound-guided core biopsy or operation excisions were used as the reference standard.Pathologic examination revealed 276 malignant lesions (64%) and 155 benign lesions (36%). A cut-off pointof 4.15 (area under the curve, 0.891) allowed significant differentiation of malignant and benign lesions. ROC(receiver-operating characteristic) curves showed a higher value for combination of B-mode ultrasound andelastography for the diagnosis of breast lesions. Conventional ultrasound combined elastography showed highsensitivity, specificity, and accuracy for group II lesions (10mm相似文献   

常规超声分型和超声造影在乳腺非肿块型病变中的应用价值

目的 探讨常规超声分型和超声造影（CEUS）在乳腺非肿块型病变（NMLs）中的应用价值。方法 选择天津市第五中心医院经病理证实为乳腺NMLs病变的患者50例（50个病灶），分析NMLs常规超声分型与BI-RADS分类对应关系，并对乳腺NMLs进行超声造影，比较联合BI-RADS及CEUS对其的诊断价值。结果 NMLs常规超声分型Ⅰa和Ⅱa病变对应BI-RADS分级为4a级，Ⅲ和Ⅳ型病变对应BI-RADS分级为4b级，Ⅰb和Ⅱb型病变对应BI-RADS分级为4c级。良恶性病变在增强后病变范围有无扩大和是否存在“蟹足征”方面差异有统计学意义（P<0.05）。Pearson相关分析显示增强后病变范围扩大、出现“蟹足征”、峰值强度和曲线下面积与恶性乳腺NMLs相关。CEUS联合BI-RADS分级的诊断价值高于常规超声BI-RADS分级。结论 NMLs常规超声分型Ⅰa和Ⅱa病变恶性风险最低，Ⅰb和Ⅱb型病变恶性风险最高。增强后病变范围扩大与出现“蟹足征”现象有助于快速鉴别NMLs良恶性病变。     

乳腺超声BI-RADS评分系统结合超声造影对乳腺肿块良恶性判断的价值

[目的]评价超声乳腺影像学报告及数据系统fBI．RADS）诊断标准结合超声造影（CEUS）诊断乳腺肿块良恶性的价值。[方法]对120例患者共122个实性肿块行常规超声检查,按照BI．RADS评分标准进行分级诊断,然后行超声造影（CEUS）并做出诊断。比较BI—RADS分级、CEUS、BI—RADS分级＋CEUS三种方法诊断的差异。[结果]BI—RADS分级诊断与CEUS诊断组间比较,其灵敏度、特异性、准确率无统计学差异（P〉0．05）,BI．RADS分级＋CEUS诊断与单独CEUS诊断比较其灵敏度、特异性、准确率亦无统计学差异（P〉0．05）。BI—RADS分级＋CEUS诊断与单独BI—RADS分级诊断比较,其特异性、准确率差异有统计学意义（P均〈0．05）。[结论]BI-RADS分级诊断与CEUS结合可以提高超声对乳腺肿瘤的诊断效率。     

Breast Elastography: A Hospital-Based Preliminary Study inChina

The performance of ultrasound elastography in the characterization of 170 breast lesions with histologiccorrelation was evaluated in 150 consecutive patients who were diagnosed as having benign or malignant masseson B mode sonography. Each lesion was classified with ACR’s BI-RADS lexicon (benign=2 and 3, malignant 4and 5) using Ueno elastography classification scores (benign=1-3, malignant=4-5). Of the 170 lesions, 70 werehistologically malignant, and 100 were benign. Ultrasound elastography was superior in detecting breast cancer,since the accuracy (95.8%), sensitivity (98.6%), specificity (96.0%), and positive predictive values (94.5%)were higher than those of B mode sonography (90.6%, 91.4%, 90.0% and 86.5% respectively). The sensitivity(98.57%) and false discovery rate (1.1%), when both modalities were jointly used (sonography and /UE) wasbetter then those of sonography and UE singly. However, the specificity (90%) was found similar to sonography.In conclusion, ultrasound elastography is superior to B mode sonography in assessing the nature of breast lesions.