Contrast-Enhanced Ultrasound (CEUS) and Quantitative Perfusion Analysis in Patients with Suspicion for Prostate Cancer

2018 ◽  
Vol 40 (03) ◽  
pp. 340-348 ◽  
Author(s):  
Andreas Maxeiner ◽  
Thomas Fischer ◽  
Julia Schwabe ◽  
Alexander Daniel Jacques Baur ◽  
Carsten Stephan ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Statistical Significance ◽  
Contrast Enhanced Ultrasound ◽  
Quantitative Perfusion ◽  
Time To Peak ◽  
Guided Biopsy ◽  
Peak Enhancement ◽  
Contrast Enhanced ◽  
Magnetic Resonance Imaging Mri ◽  
Histopathological Results

Abstract Purpose The aim of this study was to investigate contrast-enhanced ultrasound (CEUS) parameters acquired by software during magnetic resonance imaging (MRI) US fusion-guided biopsy for prostate cancer (PCa) detection and discrimination. Materials and Methods From 2012 to 2015, 158 out of 165 men with suspicion for PCa and with at least 1 negative biopsy of the prostate were included and underwent a multi-parametric 3 Tesla MRI and an MRI/US fusion-guided biopsy, consecutively. CEUS was conducted during biopsy with intravenous bolus application of 2.4 mL of SonoVue® (Bracco, Milan, Italy). In the latter CEUS clips were investigated using quantitative perfusion analysis software (VueBox, Bracco). The area of strongest enhancement within the MRI pre-located region was investigated and all available parameters from the quantification tool box were collected and analyzed for PCa and its further differentiation was based on the histopathological results. Results The overall detection rate was 74 (47 %) PCa cases in 158 included patients. From these 74 PCa cases, 49 (66 %) were graded Gleason ≥ 3 + 4 = 7 (ISUP ≥ 2) PCa. The best results for cancer detection over all quantitative perfusion parameters were rise time (p = 0.026) and time to peak (p = 0.037). Within the subgroup analysis (> vs ≤ 3 + 4 = 7a (ISUP 2)), peak enhancement (p = 0.012), wash-in rate (p = 0.011), wash-out rate (p = 0.007) and wash-in perfusion index (p = 0.014) also showed statistical significance. Conclusion The quantification of CEUS parameters was able to discriminate PCa aggressiveness during MRI/US fusion-guided prostate biopsy.

scholarly journals Количественный анализ трансректального ультразвукового исследования с контрастным усилением в диагностике рака предстательной железы (индексы): предварительные результаты

2020 ◽  
pp. 12-25
Keyword(s):  
Prostate Cancer ◽  
Quantitative Analysis ◽  
Transit Time ◽  
Rise Time ◽  
Mean Transit Time ◽  
Contrast Enhanced Ultrasound ◽  
Time To Peak ◽  
Quantitative Parameters ◽  
Peak Intensity ◽  
Contrast Enhanced

Цель исследования - выявление наиболее информативных относительных количественных показателей (индексов) ТРУЗИ с КУ в диагностике РПЖ с использованием результатов прицельной биопсии под контролем ТРУЗИ. Материал и методы исследования: обследовано 75 пациентов с подозрением на рак предстательной железы по данным пальцевого ректального исследования и (или) повышением уровня общего простатспецифического антигена сыворотки крови. При этом обязательным условием было наличие гипоэхогенных очагов в периферической зоне предстательной железы. Всем пациентам проводилась системная и прицельная биопсия. Прицельная биопсия осуществлялась из гипоэхогенных очагов - зон интереса, которые были предварительно выбраны для количественного анализа контрастного усиления. В соответствии с морфологическими данными были выделены две группы очагов: 30 очагов в группе “РПЖ” (основная группа) и 45 очагов в группе “не РПЖ” (группа сравнения). ТРУЗИ выполнялись на аппарате Epiq 5 (Philips, Нидерланды) внутриполостным микроконвексным датчиком 4-10 МГц. Использовался ультразвуковой контрастный препарат Соновью (Bracco Swiss S.A., Швейцария). При анализе кривой “время-интенсивность” оценивались следующие безразмерностные индексы, представляющие собой отношение соответствующих абсолютных параметров в зоне интереса и эталонной зоне: индекс WIR (wash-in rate), индекс TTP (time to peak), индекс PI (peak intensity), индекс MTT (mean transit time), индекс TPH (time from peak to one half) и индекс RT (rise time). Результаты исследования: достоверные различия между группами получены по индексам WIR (P 0,0001), PI (P 0,0001), TTP (P = 0,0008) и RT (P = 0,0248). Тест “индекс PI > 1,174 - рак предстательной железы” характеризуется чувствительностью 83,3%, специфичностью 88,9%, предсказательной ценностью положительного теста 83,3%, предсказательной ценностью отрицательного теста 88,9%, AUC 0,910. Тест “индекс WIR > 1,432 - рак предстательной железы” характеризуется чувствительностью 76,7%, специфичностью 82,2%, предсказательной ценностью положительного теста 74,2%, предсказательной ценностью отрицательного теста 84,1%, AUC 0,808. Тест “индекс TTP ≤ 0,936 - рак предстательной железы” характеризуется чувствительностью 73,3%, специфичностью 66,7%, предсказательной ценностью положительного теста 59,5%, предсказательной ценностью отрицательного теста 78,9%, AUC 0,729. Определяется достоверная корреляция умеренной силы между суммой Глисона и индексом PI (rS = 0,394, P = 0,0311). Выводы: использование относительных параметров (индексов) количественного анализа трансректального ультразвукового исследования с контрастным усилением может привести к повышению эффективности прицельных биопсий. Индексы отличаются большей информативностью, чем абсолютные параметры. Ключевые слова: ультразвуковое исследование с контрастным усилением, количественный анализ, количественные относительные параметры, индексы, перфузия, предстательная железа, рак предстательной железы, contrast-enhanced ultrasound (CEUS), quantitative analysis, relative quantitative parameters, indices, perfusion, prostate, prostate cancer

The validity of repeat prostate biopsy in prior biopsy negative patients: MRI-TRUS fusion guided biopsy.

2018 ◽  
Vol 36 (6_suppl) ◽  
pp. 95-95
Author(s):  
Jinho Hwang ◽  
Jung Jun Kim ◽  
Jong Jin Oh ◽  
Chang Wook Jeong ◽  
Sangchul Lee ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Prostate Biopsy ◽  
Detection Rate ◽  
Statistical Significance ◽  
Transrectal Ultrasound ◽  
Negative Results ◽  
Guided Biopsy ◽  
Clinically Significant ◽  
Magnetic Resonance Imaging Mri ◽  
Target Biopsy

95 Background: To investigate validity of magnetic resonance imaging (MRI)-transrectal ultrasound fusion target biopsy (Fusion-Bx) compared with transrectal ultrasound-guided biopsy (TRUS-Bx) by evaluating detection rate of prostate cancer (PCa). Methods: Medical records of 376 patients with prior negative TRUS-Bx who underwent repeat prostate biopsy between Aug. 2015 and Apr. 2017 were retrospectively reviewed. The cohort was stratified into two groups (TRUS-Bx and Fusion-Bx) and clinical and biopsy characteristics patterns were analyzed. Conventional systemic randomized 12-core biopsy was performed in TRUS-Bx group whereas Fusion-Bx group applied additional 2-croes of target biopsy against suspicious lesions in MRI. Results: There were total 195 and 181 patients in TRUS-Bx and Fusion-Bx group, respectively. The overall cancer detection rate was slightly higher in Fusion-Bx group, but no statistical significance was observed (24.6% vs 28.7%, p = 0.367). Fusion-Bx group showed a significantly greater detection rate in target core analysis (5.0% vs 17.7%, p = 0.044). In confirmed positive biopsy patients, Fusion-Bx group had a higher rate of clinically significant prostate cancer (CsPCa) cases, but failed to achieve statistical significance (85.4% vs 92.3%, p = 0.271). When the patients with highly or very highly suspicious MRI (maximum image grade 4-5) findings in Fusion-Bx group was compared to the whole cohort of TRUS-Bx group, Fusion-Bx group was significantly greater in terms of overall detection rate (24.6% vs 38.0%, p = 0.017) and CsPCa detection rate (85.4% vs 97.0%, p = 0.009). Higher the target image grade, greater biopsy yield was achieved. Conclusions: For the patients who underwent repeat biopsy due to prior negative results, fusion-Bx showed better clinical significance including detection rate. A further study with a larger cohort size and prospective design is still needed to confirm the validity of Fusion-Bx.

scholarly journals Количественный анализ трансректального ультразвукового исследования с контрастным усилением в диагностике рака предстательной железы (абсолютные параметры): предварительные результаты

2020 ◽  
pp. 13-26
Keyword(s):  
Prostate Cancer ◽  
Quantitative Analysis ◽  
Transit Time ◽  
Rise Time ◽  
Mean Transit Time ◽  
Contrast Enhanced Ultrasound ◽  
Time To Peak ◽  
Peak Intensity ◽  
Contrast Enhanced

Цель исследования - выявление наиболее информативных абсолютных количественных показателей трансректального ультразвукового исследования с контрастным усилением в диагностике рака предстательной железы. Обследовано 75 пациентов с подозрением на рак предстательной железы. Критериями включения являлись подозрительные результаты пальце вого ректального исследования и (или) повышение уровня общего простатспецифического антигена сыворотки крови при наличии подозрительных (гипоэхогенных) очагов в периферической зоне ПЖ, выявленных при серошкальном ТРУЗИ. Во всех случаях трансректальное ультразвуковое исследование с контрастным усилением было выполнено до установления окончательного диагноза. Ультразвуковые исследования выполнялись на аппарате Epiq 5 (Philips, Нидерланды) с помощью высокочастотного внутриполостного датчика, работающего в диапазоне частот 4-10 МГц. Использовался ультразвуковой контрастный препарат Соновью (Bracco Swiss S.A., Швейцария). Прицельная биопсия осуществлялась из гипоэхогенных очагов - зон интереса, которые были предварительно выбраны для количественного анализа контрастного усиления. В зависимости от результатов гистологического исследования материала, полученного при помощи прицельной биопсии, исследуемые очаги были распределены на две группы: основная группа (РПЖ), включающая верифицированный рак предстательной железы в зоне интереса (n = 30), и группа сравнения (не РПЖ), включающая отсутствие верификации рака предстательной железы в зоне интереса (n = 45). При анализе кривой “время-интенсивность” оценивались следующие параметры: 1) скорость нарастания (WIR (wash-in rate)) (дБ/с); 2) время до пика интенсивности (TTP (time to peak)) (с); 3) пиковая интенсивность (PI (peak intensity)) (дБ); 4) среднее время транзита (MTT (mean transit time)) (с); 5) время полувыведения (DT/2 (descending time/2)) (с); 6) время роста (RT (rise time)) (с). Достоверные различия в зонах интереса между группами получены по пара метрам WIR (P = 0,0026) и RT (P = 0,0047). Тест “WIR > 2,114 дБ/с - рак предстательной железы” характеризуется чувствительностью 50,0%, специфичностью 84,4%, предсказательной ценностью положительного теста 68,2%, предска зательной ценностью отрицательного теста 71,7%, AUC 0,706. Тест “RT ≤ 6,718 с - рак предстательной железы” характеризуется чувствительностью 70,0%, специфичностью 66,7%, предсказательной ценностью положительного теста 58,3%, предсказательной ценностью отрицательного теста 76,9%, AUC 0,694. Определяются достоверные корреляции суммы Глисона с WIR (rS = 0,521, P = 0,0032), TTP (rS = -0,503, P = 0,0046) и PI (rS = 0,378, P = 0,0393). Использование абсолютных параметров количественного анализа трансректального ультразвукового исследования с контрастным усилением может привести к повышению эффективности прицельных биопсий. Ключевые слова: трансректальное ультразвуковое исследование с контрастным усилением, количественный анализ, перфузия, предстательная железа, рак предстательной железы, contrast-enhanced ultrasound (CEUS), quantitative analysis, perfusion, prostate, prostate cancer

scholarly journals The Value of the Model and Quantitative Parameters of Contrast-Enhanced Ultrasound in Judging the Severity of SHPT

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Xing-xin Liang ◽  
Fan Li ◽  
Feng Gao ◽  
Yang Liu ◽  
Xiao-hui Qiao ◽  
...  
Keyword(s):  
Arrival Time ◽  
Statistical Significance ◽  
Mean Transit Time ◽  
Contrast Enhanced Ultrasound ◽  
Intensity Curve ◽  
Time Intensity Curve ◽  
Time To Peak ◽  
Quantitative Parameters ◽  
Contrast Enhanced ◽  
Two Phases

Using the model and quantitative parameters of contrast-enhanced ultrasound (CEUS) to assess the severity of secondary hyperparathyroidism (SHPT) was proposed. 42 SHPT patients who underwent CEUS examination were divided into three groups, light, moderate, and heavy as per parathyroid hormone (PTH). The process of CEUS was divided into two phases, wash-in phase and wash-out phase. The three groups were analyzed with their enhancing model in the two phases. The quantitative parameters of CEUS such as Arrival Time (AT), Time to Peak (TTP), Mean Transit Time (MTT), and Maximum Intensity (IMAX) were measured by time-intensity curve (TIC) and compared among the three groups. The enhancing model of light SHPT, moderate SHPT, and heavy SHPT showed statistical significance in wash-in phase and wash-out phase (P<0.05). No difference was observed in AT and TTP among the three groups (P>0.05) while MTT and IMAX showed statistical significance (P<0.05). The CEUS of light SHPT was characterized by “slow-in, fast-out, and lower-enhancement” with short enhancement time; the CEUS of moderate SHPT was characterized by “fast-in, fast-out, and higher-enhancement” with slightly long enhancement time; the CEUS of heavy SHPT was characterized by “fast-in, slow-out, and higher-enhancement” with long enhancement time. Therefore, the model and quantitative parameters of CEUS can be benefit for the assessment of the severity of SHPT.

scholarly journals Impact of Region- of-interest Size and Location on Quantitative Contrast-enhanced Ultrasound of Canine Splenic Perfusion

2020 ◽  
Author(s):  
Simona Morabito ◽  
Simona Di Pietro ◽  
Luca Cicero ◽  
Annastella Falcone ◽  
Luigi Liotta ◽  
...  
Keyword(s):  
Regional Blood Flow ◽  
Mean Transit Time ◽  
Clinical Importance ◽  
Region Of Interest ◽  
Contrast Enhanced Ultrasound ◽  
Software Analysis ◽  
Time To Peak ◽  
Splenic Parenchyma ◽  
Peak Enhancement ◽  
Contrast Enhanced

Abstract BackgroundDuring the contrast enhanced ultrasound (CEUS) the features of regions of interest (ROI) can affects the value of the perfusion parameters obtained from a time intensity curves (TIC). In veterinary medicine, the influence of ROI size and location during the CEUS exam has been described using the kidney as target organ, with contrasting results. No guidelines have been reported for the ideal placement or size of the ROI during the quantitative analysis of CEUS in canine spleen.The aim of this study was to evaluate the effect of the size and location of ROIs in the spleen of conscious dogs on perfusion variables determined using contrast-enhanced ultrasonography with sulphur hexafluoride. ResultsA prospective, observational study on 15 adult client-owned mixed-breed dogs was performed using a system equipped with contrast-tuned imaging technology. Qualitative and quantitative assessment of the enhancement pattern of the spleen were performed. Three square ROIs (0.05 cm2) were manually drawn in a row and spaced 1mm apart, placing adjacent ROIs at three different depths. Three medium rectangular ROIs (0.3 cm2 ) encompass the 3 smaller ROIs of each row and a single large square ROI (1 cm2) containing all the previous ROIs were drawn. Software analysis of generated time-intensity curves within each ROI allowed to calculate the perfusion parameters: peak enhancement, time to peak, regional blood flow and volume and mean transit time. The coefficient of variation for all parameters was always lowest in the largest ROI in comparison with the other smaller ROIs. The ROI A and B, positioned in proximal and middle levels respectively, showed coefficients of variation similar to the largest ROI. The analysis of variance model showed a significant effect of location and size of ROIs in the quantitative perfusion analysis of the canine spleen, with a reduction of perfusion parameters in the distal ROI.Conclusions The analysis of splenic perfusion through quantitative evaluation of enhancement with a contrast agent into a large enough and proximal to the ultrasound beam area of ​​splenic parenchyma may be of clinical importance in the diagnosis of splenic disorders.

Potential application of dynamic contrast enhanced ultrasound in predicting microvascular invasion of hepatocellular carcinoma

2021 ◽  
pp. 1-9
Author(s):  
Yi Dong ◽  
Yijie Qiu ◽  
Daohui Yang ◽  
Lingyun Yu ◽  
Dan Zuo ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Area Under The Curve ◽  
Microvascular Invasion ◽  
Contrast Enhanced Ultrasound ◽  
Negative Group ◽  
Clinical Value ◽  
Positive Group ◽  
Quantitative Perfusion ◽  
Dynamic Contrast Enhanced ◽  
Contrast Enhanced

OBJECTIVE: To investigate the clinical value of dynamic contrast enhanced ultrasound (D-CEUS) in predicting the microvascular invasion (MVI) of hepatocellular carcinoma (HCC). PATIENTS AND METHODS: In this retrospective study, 16 patients with surgery and histopathologically proved HCC lesions were included. Patients were classified according to the presence of MVI: MVI positive group (n = 6) and MVI negative group (n = 10). Contrast enhanced ultrasound (CEUS) examinations were performed within a week before surgery. Dynamic analysis was performed by VueBox ® software (Bracco, Italy). Three regions of interests (ROIs) were set in the center of HCC lesions, at the margin of HCC lesions and in the surrounding liver parenchyma accordingly. Time intensity curves (TICs) were generated and quantitative perfusion parameters including WiR (wash-in rate), WoR (wash-out rate), WiAUC (wash-in area under the curve), WoAUC (wash-out area under the curve) and WiPi (wash-in perfusion index) were obtained and analyzed. RESULTS: All of HCC lesions showed arterial hyperenhancement (100 %) and at the late phase as hypoenhancement (75 %) in CEUS. Among all CEUS quantitative parameters, the WiAUC and WoAUC were higher in MVI positive group than in MVI negative group in the center HCC lesions (P <  0.05), WiAUC, WoAUC and WiPI were higher in MVI positive group than in MVI negative group at the margin of HCC lesions. WiR and WoR were significant higher in MVI positive group. CONCLUSIONS: D-CEUS with quantitative perfusion analysis has potential clinical value in predicting the existence of MVI in HCC lesions.

Comparison of contrast-enhanced ultrasound targeted biopsies versus standard systematic biopsies for prostate cancer correction in different PSA value groups in rural China

2020 ◽  
pp. 1-7
Author(s):  
Dian Yuan Lu ◽  
Lan Liu ◽  
Li Shen ◽  
Jian Rong Cai ◽  
Li Xu ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Cancer Detection ◽  
Detection Rate ◽  
Rural China ◽  
Clinical Importance ◽  
Contrast Enhanced Ultrasound ◽  
Biopsy Core ◽  
Contrast Enhanced ◽  
Significant Difference ◽  
Positive Rate

OBJECTIVE: To investigate prostate cancer detection rate of different biopsy protocols in different PSA value groups in rural China. METHODS: A total of 186 patients underwent contrast-enhanced ultrasound (CEUS) in order to determine the puncture target prior to biopsy were enrolled in this retrospective study. All patients underwent 12-core SB combined with CEUS-TB. The biopsy results of different biopsy protocols were compared in patients with stratification by PSA value. RESULTS: Among the 186 patients underwent prostate biopsy, the histopathologic results revealed prostate cancer (PCa) in 117 cases (62.9%) and benign lesions in 69 cases (37.1%). The PCa detection rate between 8-core SB and 12-core SB showed no significant difference in PSA 4–10 ng/ml group, while the 12-core SB was significantly higher than CEUS-TB (44.9% versus 32.7% , P = 0.01). In PSA 10–20 ng/ml group, the significant difference was not seen between SB and CEUS-TB (50.0% versus 45.7% , P = 0.15). As for PSA greater than 20 ng/ml group, the PCa detection rate by SB was higher than CEUS-TB, but showed no statistically significance (79.1% versus 76.9% , P = 0.15). In the overall patients, the biopsy core positive rate of CEUS-TB was significantly higher than SB (97% versus 55.5% and 28.5% , P = 0.0001). CONCLUSION: The flexible use of SB combined with CEUS-TB can reduce the number of biopsy cores in higher PSA groups. It has clinical importance in the detection of PCa in different PSA value groups in rural China.

scholarly journals Exploring the Value of Radiomics Features Based on B-Mode and Contrast-Enhanced Ultrasound in Discriminating the Nature of Thyroid Nodules

2021 ◽  
Vol 11 ◽  
Author(s):  
Shi Yan Guo ◽  
Ping Zhou ◽  
Yan Zhang ◽  
Li Qing Jiang ◽  
Yong Feng Zhao
Keyword(s):  
Diagnostic Performance ◽  
Thyroid Nodules ◽  
New Technologies ◽  
Statistical Significance ◽  
Characteristic Curve ◽  
Logistic Models ◽  
Contrast Enhanced Ultrasound ◽  
Clinical Value ◽  
Contrast Enhanced ◽  
Significant Difference

BackgroundWith the improvement of ultrasound imaging resolution and the application of various new technologies, the detection rate of thyroid nodules has increased greatly in recent years. However, there are still challenges in accurately diagnosing the nature of thyroid nodules. This study aimed to evaluate the clinical application value of the radiomics features extracted from B-mode ultrasound (B-US) images combined with contrast-enhanced ultrasound (CEUS) images in the differentiation of benign and malignant thyroid nodules by comparing the diagnostic performance of four logistic models.MethodsWe retrospectively collected and ultimately included B-US images and CEUS images of 123 nodules from 123 patients, and then extracted the corresponding radiomics features from these images respectively. Meanwhile, a senior radiologist combined the thyroid imaging reporting and data system (TI-RADS) and the enhancement pattern of the ultrasonography to make a graded diagnosis of the malignancy of these nodules. Next, based on these radiomics features and grades, logistic regression was used to help build the models (B-US radiomics model, CEUS radiomics model, B-US+CEUS radiomics model, and TI-RADS+CEUS model). Finally, the study assessed the diagnostic performance of these radiomics features with a comparison of the area under the curve (AUC) of the receiver operating characteristic curve of four logistic models for predicting the benignity or malignancy of thyroid nodules.ResultsThe AUC in the differential diagnosis of the nature of thyroid nodules was 0.791 for the B-US radiomics model, 0.766 for the CEUS radiomics model, 0.861 for the B-US+CEUS radiomics model, and 0.785 for the TI-RADS+CEUS model. Compared to the TI-RADS+CEUS model, there was no statistical significance observed in AUC between the B-US radiomics model, CEUS radiomics model, B-US+CEUS radiomics model, and TI-RADS+CEUS model (P&gt;0.05). However, a significant difference was observed between the single B-US radiomics model or CEUS radiomics model and B-US+CEUS radiomics model (P&lt;0.05).ConclusionIn our study, the B-US radiomics model, CEUS radiomics model, and B-US+CEUS radiomics model demonstrated similar performance with the TI-RADS+CEUS model of senior radiologists in diagnosing the benignity or malignancy of thyroid nodules, while the B-US+CEUS radiomics model showed better diagnostic performance than single B-US radiomics model or CEUS radiomics model. It was proved that B-US radiomics features and CEUS radiomics features are of high clinical value as the combination of the two had better diagnostic performance.

The role of contrast-enhanced ultrasound in the diagnosis of malignant non-mass breast lesions and exploration of diagnostic criteria

2021 ◽  
Vol 94 (1120) ◽  
pp. 20200880
Author(s):  
Fan Zhang ◽  
Lifang Jin ◽  
Gang Li ◽  
Chao Jia ◽  
Qiusheng Shi ◽  
...  
Keyword(s):  
Diagnostic Criteria ◽  
Sensitivity And Specificity ◽  
Breast Imaging ◽  
Diagnostic Value ◽  
Binary Logistic Regression Analysis ◽  
Lower Sensitivity ◽  
Breast Lesions ◽  
Contrast Enhanced Ultrasound ◽  
Contrast Enhanced ◽  
Histopathological Results

Objectives: To assess the value of contrast-enhanced ultrasound (CEUS) for diagnosing malignant non-mass breast lesions (NMLs) and to explore the CEUS diagnostic criteria. Methods: A total of 116 patients with 119 NMLs detected by conventional US were enrolled. Histopathological results were used as the reference standard. The enhancement characteristics of NMLs in CEUS were compared between malignant and benign NMLs. The CEUS diagnostic criteria for malignant NMLs were established using independent diagnostic indicators identified by binary logistic regression analysis. The diagnostic performance of Breast Imaging Reporting and Data System-US (BI-RADS-US), CEUS, and BI-RADS-US combined with CEUS was evaluated and compared. Results: Histopathological results showed 63 and 56 benign and malignant NMLs. Enhancement degree (OR = 5.75, p = 0.003), enhancement area (OR = 4.25, p = 0.005), and radial or penetrating vessels (OR = 7.54, p = 0.003) were independent diagnostic indicators included to establish the CEUS diagnostic criteria. The sensitivity and specificity of BI-RADS-US, CEUS, and BI-RADS-US combined with CEUS were 100 and 30.2%, 80.4 and 74.6%, and 94.6 and 77.8%, respectively; the corresponding areas under the receiver operating characteristic curve (AUC) were 0.819, 0.775, and 0.885, respectively. Conclusions: CEUS has a high specificity in malignant NML diagnosis based on the diagnostic criteria including enhancement degree, enhancement area, and radial or penetrating vessels, but with lower sensitivity than BI-RADS-US. The combination of CEUS and BI-RADS-US is an effective diagnostic tool with both high sensitivity and specificity for the diagnosis of malignant NMLs. Advances in knowledge: In this study, we assessed the diagnostic value of CEUS for malignant NMLs and constructed a feasible diagnostic criterion. We further revealed that the combination of CEUS and BI-RADS-US has a high diagnostic value for malignant NMLs.

Sign in / Sign up

Export Citation Format

Share Document