Contrast-enhanced power Doppler sonography in breast lesions: effect on differential diagnosis after mammography and gray scale sonography.

OBJECTIVE: To evaluate the efficacy of contrast-enhanced power Doppler sonography in the differential diagnosis of breast lesions after a mammography-gray scale sonography combination. METHODS: Sixty-eight patients with 69 breast masses underwent power Doppler sonography before and after intravenous injection of a contrast agent. The lesions were diagnosed as "highly suggestive of malignancy" (category 5; n = 32), "suspicious" (category 4; n = 21), and "probably benign" (category 3; n = 16) by mammography and gray scale sonography, modeled on the American College of Radiology Breast Imaging Reporting and Data System classification. Power Doppler findings did not affect patient treatment. The authors subjectively evaluated the estimated area of vascularity, degree of enhancement following contrast agent administration, morphologic features, and distribution of vessels within the lesions. RESULTS: The final diagnoses were malignant in 28 lesions and benign in 41. Significant enhancement after contrast agent injection was detected in both the malignant and benign groups. Only 2 criteria, estimated area of vascularity and degree of enhancement following contrast agent administration, proved to be significant diagnostic determinants for contrast-enhanced power Doppler sonography (P < .001; interobserver agreements, 74.4 and 77.8, respectively). Contrast-enhanced power Doppler sonography provided a higher specificity, positive predictive value, and negative predictive value than power Doppler sonography but a lower sensitivity and negative predictive value than mammography-gray scale sonography. Only in the category 4 lesions could the combination of mammography-gray scale sonography and contrast-enhanced power Doppler sonography accomplish a higher specificity (71%) and positive predictive value (70%) than mammography-gray scale sonography (39% and 53%, respectively). CONCLUSIONS: Power Doppler and contrast-enhanced power Doppler sonography cannot be recommended as confirmatory tests in Breast Imaging Reporting and Data System category 3 and category 5 lesions. Although contrast-enhanced power Doppler sonography may help reduce unnecessary biopsies in Breast Imaging Reporting and Data System category 4 lesions, recommendation of its use has many drawbacks, such as imperfectly established criteria, lack of absolute certainty, and high cost.     

Acute lymphoblastic leukemia relapse in the breast diagnosed with gray-scale and color Doppler sonography

Extramedullary relapses of acute lymphoblastic leukemia (ALL) in children and young adults are rare and in most cases are localized in the central nervous system, testes, or both. We describe a rare case of extramedullary relapse of ALL in the breast of a 17-year-old girl. The patient, who had been diagnosed with ALL 1 year before and had been in complete remission for 5 months, was admitted to the hospital for investigation of a mass in her left breast. On clinical examination, she had a large, palpable, nontender mass in her left breast. Mammography revealed a very dense mass. On gray-scale and power Doppler sonography, the appearance of the mass was consistent with malignancy. Histopathologic examination of a surgical biopsy specimen permitted accurate diagnosis of ALL.     

彩色和能量多普勒超声在乳腺肿块良恶性鉴别诊断中的价值

目的:分析乳腺实质性占位中的彩色多普勒和能量多普勒血流信号,估测鉴别良恶性肿块的价值。方法:对经手术病理证实的130例乳腺肿块的彩色和能量多普勒特点进行回顾性分析。分别分析血流信号在乳腺肿块中的分布位置(分为周边型、中心型、混合型)、形态(分为点状或线条型、分支型、不规则型)及有无穿入血流。结果:在恶性病变中混合型血流为63%,穿入型血流为67%,分支型血流为54%;在良性病变中分别为24%,17%和14%。两组中3种多普勒血流特征有显著性差异(P<0.01)。结论:彩色多普勒显示乳腺肿块内的血流分布和形态是一种潜在的重要特征,预测肿瘤恶性的可能。     

Assessment of therapeutic response in hepatocellular carcinoma treated with percutaneous radio frequency ablation: comparison of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent.

OBJECTIVE: To compare the results of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent in the assessment of the therapeutic response to radio frequency ablation in hepatocellular carcinoma. METHODS: In 66 patients with 73 nodular hepatocellular carcinomas ranging from 1.0 to 4.0 cm (mean, 2.6 cm) in diameter, contrast-enhanced power Doppler ultrasonography was performed after intravenous bolus injection of a galactose-based microbubble contrast agent before and after radio frequency ablation. The results of the studies were compared with the findings of follow-up 3-phase helical computed tomography. All patients were regularly followed up with computed tomography for more than 1 year (range, 13-19 months). RESULTS: In 8 (11%) of 73 hepatocellular carcinomas, immediate follow-up computed tomography obtained within 2 hours after radio frequency ablation showed focal enhancing portions within the treated lesions, suggesting residual non-necrotic tumors. All 8 of these tumors had intratumoral flow signals on contrast-enhanced power Doppler ultrasonography. The diagnostic agreement between computed tomography and contrast-enhanced power Doppler ultrasonography was achieved in 100%. Among the remaining 65 hepatocellular carcinomas with the absence of residual tumors at both immediate follow-up computed tomography and contrast-enhanced power Doppler ultrasonography, subsequent follow-up computed tomography showed local regrowth at the margins of 10 lesions (15%). CONCLUSIONS: The results of contrast-enhanced power Doppler ultrasonography closely correlated with those of immediate follow-up computed tomography for detecting residual tumors in hepatocellular carcinomas treated with radio frequency ablation. Both techniques, however, showed a limitation in detecting small or microscopic residual tumors and in predicting local regrowth in the treated lesions.     

Diagnosing breast lesions with contrast-enhanced 3-dimensional power Doppler imaging.

OBJECTIVE: To compare mammography with contrast-enhanced 2- and 3-dimensional power Doppler imaging for the diagnosis of breast cancer. METHODS: Fifty-five patients, who underwent breast biopsies with histopathologic assessment, participated in a study of mammography and contrast-enhanced sonography. Levovist (Berlex Laboratories, Montville, NJ) and Optison (Mallinckrodt, St Louis, MO) were administrated to 22 and 33 patients, respectively. Precontrast and postcontrast 2-dimensional power Doppler data of the lesion were obtained with an HDI 3000 system (Philips Medical Systems, Bothell, WA), and 3-dimensional data were acquired with an LIS 6000A system (Life Imaging Systems Inc, London, Ontario, Canada). Two independent and blinded readers assessed diagnosis. Receiver operating characteristic curves were computed individually and in combination for mammography and 2- and 3-dimensional sonography (before and after contrast). Histopathologic and imaging parameters were compared by Mann-Whitney statistics. RESULTS: Mammographic findings were available for 50 patients, biopsy for 54, and 2- and 3-dimensional sonographic images for 53 and 52, respectively. Of the 50 patients who had all 4 measures, 15 (30%) had malignancies. The areas under the receiver operating characteristic curve for the diagnosis of breast cancer were 0.51 for 2-dimensional contrast-enhanced imaging, 0.60 for 3-dimensional power Doppler imaging, and 0.76 for 3-dimensional contrast-enhanced imaging (P < .01). Mammography produced an area of 0.86, which increased when combined with 3-dimensional contrast-enhanced imaging to 0.90 and with all sonographic modalities to 0.96 (P < .001). The histopathologic diagnosis of benign or malignant correlated with the presence or absence of anastomoses and with the degree of vascularity assessed with contrast-enhanced 3-dimensional power Doppler imaging (P = .007 and .02). CONCLUSIONS: Contrast-enhanced 3-dimensional power Doppler imaging increases the ability to diagnose breast cancer relative to conventional 2- and 3-dimensional sonographic imaging.     

Characterization of focal liver lesions: comparison of pulse-inversion harmonic contrast-enhanced sonography with contrast-enhanced CT

PURPOSE: To compare the efficacy of contrast-enhanced pulse-inversion harmonic sonography for the characterization of focal liver lesions with that of contrast-enhanced helical CT. METHODS: Real-time contrast-enhanced sonography (CEUS) using Sonovue and contrast-enhanced CT (CECT) were performed on 109 patients with focal liver lesions, including 61 hepatocellular carcinomas, 15 liver metastases, 5 cholangiocellular carcinomas, 12 hemangiomas, 5 regenerative nodules, 3 adenomas, 3 focal nodular hyperplasias, 4 focal necroses, and 1 angiomyolipoma prior to surgery or percutaneous needle biopsy. The diagnostic performance was assessed by using histopathological results as reference standards. RESULTS: Three cases were missed on CEUS, and 7 cases were missed on CECT. These 10 missed cases were excluded from paired statistical comparison. Ten cases were misdiagnosed on CEUS and 17 cases were misdiagnosed on CECT. The overall accuracy was 89.9% (89/99) for CEUS and 82.8% (82/99) for CECT. The difference between CEUS and CECT was not statistically significant. Concordance between CEUS and CECT was observed in 90.9% (90/99) cases. CONCLUSION: Real-time pulse-inversion harmonic CEUS with Sonovue is comparable with CECT in the characterization of focal liver lesions.     

Renal infarct: contrast-enhanced power Doppler sonographic findings

Power Doppler sonography (PDUS) is a promising technique for the diagnosis of renal infarcts. PDUS's efficacy may be enhanced by using sonographic contrast agents. We evaluated 3 cases of renal infarction using PDUS and the sonographic contrast agent Levovist. The findings were compared with those of other imaging modalities, such as scintigraphy, CT, and angiography. In case 1, PDUS showed a patent interlobar artery only in the lower part of the right kidney and no other perfusion of the right renal parenchyma. Contrast-enhanced PDUS showed patchy areas of preserved perfusion in the lower and middle-upper anterior portions of the kidney. In case 2, PDUS showed diffuse and patchy perfusion defects in the anterolateral portion of the right kidney. On contrast-enhanced PDUS, no signal enhancement was seen in these areas, but the perfusion defects were better delineated. In case 3, PDUS showed no perfusion in the upper pole of the kidney; the nonperfused area extended to the posterior upper portion of the kidney but could not be distinguished from normal tissue. After injection of the contrast agent, there was no enhancement of the posterior extension of the upper pole infarct, but Doppler signals from the surrounding normal parenchyma were enhanced, so the area was more clearly demarcated. The administration of the contrast agent facilitated the visualization of the infarcts in all 3 cases.     

Evaluation of joint effusion in rabbits by color Doppler, power Doppler, and contrast-enhanced power Doppler ultrasonography

PURPOSE: The aim of this prospective study was to evaluate the diagnostic value of power Doppler ultrasonography (PDUS) and contrast-enhanced PDUS (CEPDUS) in the depiction and characterization of experimentally induced arthritis in the rabbit. MATERIALS AND METHODS: Thirty rabbits were divided into three groups consisting of one control group (saline injection group) and two experimental groups: a suppurative arthritis group and a chemically induced synovitis group. The same amount (1 ml) of each agent was directly injected into the right hip joint. Serial color Doppler ultrasound (CDUS), PDUS, and CEPDUS images were obtained before and after injection. RESULTS: We observed that all of the infected knees in the suppurative arthritis group with Staphylococcus aureus demonstrated an increased signal on PDUS after inoculation. A minimal power Doppler signal was presented in the chemically induced synovitis group with talc injection, but none of the control knees demonstrated any increased signals. CEPDUS was the most sensitive imaging modality for evaluating the increase of blood flows in suppurative arthritis and was subsequently followed by PDUS and CDUS. CONCLUSION: The increased signals obtained with PDUS represent increased local blood flows; therefore, this technique can be used for evaluating the degree of inflammation. Furthermore, using the contrast agent enhances the sensitivity of PDUS, and it can even be useful for differentiating borderline cases.     

彩色多普勒超声在肝内早期小感染灶与小肝癌鉴别诊断中的应用价值

目的探讨彩色多普勒超声对肝内早期小感染病灶及小肝癌的鉴别诊断价值。方法应用彩色多普勒超声对19例肝内直径≤3cm的早期感染病灶(细菌性肝脓肿10例、肝结核6例、肝霉菌2例、肝梅毒1例)和30例肿瘤直径≤3cm的小肝癌病灶的形态、边缘、内部回声、占位效应、血流特点等进行对比观察。所有病变的诊断均经活检病理证实。结果肝内早期小感染灶组中病灶形态不规则16例(16/19),小肝癌组中病灶形态不规则6例(6/30),两组病灶形态比较差异有统计学意义(P<0.05)。感染灶组中病灶边缘不清15例(15/19),小肝癌组中病灶边缘不清晰9例(9/30),两组比较差异有统计学意义(P<0.05)。感染灶组中病灶无明显占位效应19例(19/19),低回声16例(16/19),而小肝癌组中病灶无明显占位效应23例(23/30),低回声24例(24/30),以上两项结果两组间比较差异无统计学意义(P>0.05)。感染灶组和小肝癌组的血流信号检出分别为5例(5/19)和10例(10/30),两组比较差异无统计学意义(P>0.05),但是两组检出的穿支或环状血流信号分别为0例(0/19)及8例(8/30),差异有统计学意义(P<0.05)。结论彩色多普勒超声不仅可显示肝内早期小感染灶及小肝癌的病灶边缘、形态,还可更清晰显示病灶的血流特点,从而可对肝内早期小感染灶与小肝癌病灶进行更有效的鉴别诊断。     

Application of power Doppler vocal fremitus sonography in breast lesions.

OBJECTIVE: The purpose of this study was to illustrate the method and use of power Doppler vocal fremitus (PDVF) sonography in the detection and diagnosis of breast lesions. METHODS: One case was evaluated by various sonographic parameters and equipment to determine how the VF images were affected. Cases illustrative of a broad range of breast conditions were also collected. Each image pair consisted of B-mode and VF images to maintain an identical projection and to illustrate the influence of PDVF sonography. RESULTS: With B-mode and PDVF sonography, we evaluated and compared various breast conditions, including normal anatomic structures and abnormal lesions. We found that PDVF sonography is useful for distinguishing abnormal masses from normal tissue, such as differentiating between isoechoic tumors and isoechoic glandular tissues, and discriminating entrapped fat lobules from isoechoic tumors. Furthermore, PDVF sonography was useful for determining whether intracystic echoes are attached to the cyst wall. CONCLUSIONS: Power Doppler VF imaging is a valuable adjunct tool to B-mode sonography in the evaluation of breast lesions.     

超声造影定性及定量分析鉴别乳腺良恶性非肿块型病变

目的观察超声造影(CEUS)定性及定量分析鉴别乳腺良恶性非肿块型病变(NML)的价值。方法回顾性分析57例乳腺NML患者(57个病灶),根据病理结果分为良性与恶性病变组,对比组间CEUS定性及定量指标差异,选择差异有统计学意义的参数建立回归方程,采用ROC曲线评估3个方程对恶性病变的诊断效能。结果 57个乳腺NML中,经病理确诊良性病变31例(良性组),恶性病变26例(恶性组),2组NMLs增强强度、病变范围、周边血管和峰值强度(PI)、曲线下面积(AUC)及平均渡越时间(MTT)差异均有统计学意义(P均<0.05);多因素分析结果显示,定性参数中的增强强度、病变范围,定量参数中的PI、AUC以及二者联合分析所示病变范围和PI均为鉴别诊断乳腺良恶性NMLs的独立因子(P均<0.05)。据此分别建立定性、定量及二者联合分析的回归方程预测恶性病变的AUC分别为0.80、0.63和0.71,定性分析优于定量分析(Z=-3.02,P<0.01),而与二者联合分析差异无统计学意义(Z=-0.10,P=0.54)。结论 CEUS定性和定量分析均对鉴别乳腺良恶性NMLs有一定价值,...     

能量多普勒超声造影在乳腺肿瘤诊断中的应用研究

目的　研究乳腺肿块能量多普勒超声造影前后血流信号变化和特征。方法　 51例乳腺肿块患者 (2 8例良性 ,2 3例恶性 ) ,选用Levovist作为超声造影剂 ,观察造影前后肿块内的血流形态 ,计算机辅助定量测定肿块彩色像素密度及造影后能量多普勒血流信号到达峰值时间。结果　造影后恶性组血流信号增强效果比良性组明显 ,不规则型、穿入型、分支型血流形态在恶性组中分别为 69.6 %、73 .9%、82 .6 % ,在良性组中分别为 2 1 .4 %、32 .1 %、2 8.6 % ,良性组与恶性组比较 ,差异有显著性意义 (P <0 .0 5)。恶性组彩色像素密度增加比良性组明显 ,开始增强时间、到达峰值时间比良性组短 (P <0 .0 5)。结论　Levovist能有效增强乳腺肿块的能量多普勒血流信号 ,有助于进一步观察肿瘤血管形态 ,对乳腺肿瘤的鉴别诊断有帮助     

高频彩色多普勒超声在乳腺癌钼靶X线摄影阴性诊断中的应用价值

目的评价高频彩色多普勒超声在乳腺癌钼靶X线摄影阴性诊断中的应用价值。方法将2936例女性乳腺检查中发现病变并经手术或超声引导下穿刺活检病理证实的56例乳腺癌病灶的术前钼靶X线摄影结果与超声检查结果进行对比分析,采用双盲法,检查结果依照BI-RADS标准评判分级,并与病理结果作对照。结果56例中,术前超声诊断乳腺癌53例(53/56),超声表现为不规则的低回声肿物图像,部分肿物可见穿入性血流信号及高阻血流频谱;超声呈假阴性3例,超声声像图未见肿物图像,在钼靶X线摄影则表现为恶性钙化,无明确肿块。乳腺钼靶X线摄影诊断乳腺癌47例(47/56),主要影像表现为毛刺样肿块及恶性钙化,呈假阴性9例,肿块最大直径范围约1.5~0.4cm。结论超声诊断肿块型乳腺癌有较高的准确性,尤其可检出钼靶X线不能检出的较小的乳腺癌肿块。     

超声自动乳腺全容积成像与多普勒超声成像联合应用鉴别乳腺病灶良恶性

目的 探讨超声自动乳腺全客积成像(ABVS)、彩色多普勒超声血流成像(CDFI)和脉冲多普勒(PDU)对乳腺病灶良恶性鉴别诊断价值.方法 应用ABVS、CDFI和PDU对77例患者获手术病理证实的93个乳腺病灶进行检查.结果 良性32例共44个病灶,恶性45例共49个病灶,ABVS诊断乳腺肿瘤良恶性的敏感度为85.7％,特异度为72.7％,准确度为79.6％.应用CDFI诊断敏感度为61.2％,特异度为61.4％,准确度为61.3％;应用PDU诊断敏感度为65.3％,特异度为79.5％,准确度为72.0％.联合应用ABVS、CDFI、PDU对乳腺恶性肿瘤诊断敏感度87.8％,特异度95.5％,准确度91.4％.结论 联合应用ABVS、CDFI、PDU有助于乳腺病灶良恶性鉴别诊断.     

Usefulness of power Doppler and contrast-enhanced sonography in the differentiation of hyperechoic renal masses

Background: In a prospective study, we compared power Doppler with and without contrast medium in the depiction of vascularity for the characterization of hyperechoic renal lesions. Methods: Forty-one hyperechoic renal expansive lesions (29 benign, 12 malignant) in 32 patients were studied with power-Doppler ultrasonography before and after administration of an echo-enhancing agent (Levovist Schering AG, Berlin, Germany). Vascular architecture of the lesions was categorized into five different patterns. Results: Power Doppler ultrasonography showed vascular structures in 25 lesions. The study enhanced with Levovist showed vascularity in eight of 16 lesions not seen on the unenhanced study. The characterization of vascular patterns with unenhanced power Doppler ultrasonography improved diagnostic accuracy compared with gray-scale ultrasonography (59% vs. 32%). The combination of B mode and power Doppler produced even greater diagnostic accuracy (78%), independent of the administration of echo-enhancing agent. Levovist administration was useful in the differential diagnosis between pseudotumor and neoplasm. Conclusion: The use of songraphic contrast agent did not increase the diagnostic accuracy of power Doppler in the differential diagnosis of hyperechoic renal lesions but was advantageous for the characterization of suspected pseudomasses. Received: 6 September 2000/Accepted: 13 December 2000     

三维能量多普勒超声成像技术在早期宫颈癌血管检测中的应用

目的探讨三维能量多普勒超声定量检测早期宫颈癌肿块内血管的诊断价值及早期宫颈癌肿瘤体积与血管参数(VI、FI、VFI)的相关性。方法对25例临床诊断为早期宫颈癌(Ia～IIa期)的患者(宫颈癌组)及19例宫颈上皮内瘤变(CIN)Ⅱ～Ⅲ级的患者(宫颈上皮内瘤变组)行三维能量多普勒超声检查,测定宫颈或肿块内血管形成指数(VI)、血流指数(FI)、血管形成-血流指数(VFI)3项血管参数,同时观察宫颈癌组患者肿瘤体积与血管参数的相关性,并与20例正常女性(对照组)宫颈的3项血管参数检测值进行比较。结果早期宫颈癌组[VI(5.44±4.02)%、FI(41.61±3.51)及VFI(2.31±1.65)]3项血管参数平均测值明显高于宫颈上皮内瘤变组[VI(1.84±0.62)%、FI(39.17±4.12)、VFI(1.34±0.55)]和对照组[VI(0.77±0.11)%、FI(38.49±3.55)及VFI(0.47±0.33)],差异有统计学意义(P0.05);宫颈上皮内瘤变组2项血管参数测值VI、VFI亦高于对照组,差异有统计学意义(P0.05)。早期宫颈癌组患者宫颈肿瘤体积越大,宫颈肿瘤内FI测值也升高,宫颈肿瘤体积与FI测值间存在线性正相关关系,相关系数r=0.523(P=0.007)。结论三维能量多普勒超声是定量检测早期宫颈癌肿块内血流的新方法,可为早期宫颈癌患者超声检查提供更多诊断信息。     

低机械指数谐波超声造影在局灶性肝病治疗适应证选择中的应用

目的:探讨低机械指数谐波超声造影在局灶性肝脏病变治疗适应证选择中的应用价值。方法:对232例(共357个结节)局灶性肝脏病变患者进行低机械指数谐波超声造影、增强CT/MR和/或病理检查。结果:低机械指数谐波超声造影诊断肝脓肿10例,患者行超声导向穿刺抽脓、局部注药治疗;诊断恶性肿瘤147例,其中82例行非手术治疗,包括7例行经皮无水乙醇注射治疗,57例行射频消融或微波凝固治疗,14例行肝动脉化疗栓塞或经皮无水乙醇注射治疗联合射频消融,4例行肝动脉化疗栓塞。结论:超声造影有助于肝脏局灶性病变治疗适应证的选择。     

Echo contrast-enhanced power Doppler ultrasonography for assessment of angiogenesis in renal cell carcinoma.

OBJECTIVE: Tumoral growth is an angiogenesis-dependent event. Although there are studies about the importance of histopathologic angiogenesis in various malignancies, the assessment of the angiogenesis by radiologic techniques is not well established. The aim of this study was to investigate the efficacy of echo contrast-enhanced power Doppler ultrasonography (PDUS) in determining the angiogenic status of renal cell carcinoma (RCC). METHODS: Power Doppler ultrasonography was performed before and after intravenous administration of an echo contrast agent in 42 patients with renal masses. Twenty-one of these renal masses were diagnosed as RCC histopathologically, and these 21 patients were reevaluated retrospectively. The color pixel ratios of selected images were calculated as the ratio of the number of pixels showing power Doppler signals to the total number of pixels within the lesion. The results were compared with the histopathologic microvessel density (MVD). RESULTS: A significant correlation was found between color pixel ratio and MVD values in both PDUS techniques. The use of the echo contrast agent improved this correlation and P values (Spearman rho from 0.436 to 0.551; P from .048 to .01). CONCLUSIONS: Color pixel ratio values reflect the MVD in RCC. Therefore, these results suggest that preoperative quantification of angiogenesis can be possible with the help of PDUS in RCC.     

三维能量多普勒联合超声乳腺影像报告与数据系统对乳腺病灶的诊断价值

目的探讨三维能量多普勒超声（3D-PDS）联合超声乳腺影像报告与数据系统（BI-RADS）在乳腺良、恶性病灶鉴别诊断中的应用价值。 方法2013年12月至2015年7月于哈尔滨医科大学附属第二医院接受乳腺肿瘤手术的患者257例,共282个病灶,于术前行二维超声及3D-PDS检查,根据病理学诊断结果,分成良性组与恶性组。比较2组病灶二维超声特征及3D-PDS特征是否存在差异。以病理结果为金标准,绘制受试者操作特性（ROC）曲线,比较2种方法单独应用以及联合应用对乳腺病灶鉴别诊断的能力。 结果282个乳腺病灶中,良性病灶175个（62.1%）,恶性病灶107个（37.9%）。2组病灶二维超声特征比较,病灶形状、生长方位、边界、边缘、后方回声、钙化差异均有统计学意义（P值均<0.01）;3D-PDS血管特征比较,血管分布、形态、有无穿入血管差异均具有统计学意义（P值均<0.05）。3D-PDS与超声BI-RADS联合应用诊断乳腺病灶ROC曲线下面积为0.866,大于单独应用超声BI-RADS及3D-PDS（0.820、0.727）。 结论超声BI-RADS与3D-PDS联合应用可提高乳腺良、恶性病灶的鉴别诊断效能。