Viscosity as a Biomarker Coincident with Shear Wave Elastography. Re: Prediction of Significant Prostate Cancer at Prostate Biopsy and Per Core Detection Rate of Targeted and Systematic Biopsies Using Real-Time Shear Wave Elastography (Urol Int 2015; DOI: 10.1159/000431233)

2015 ◽  
Vol 96 (1) ◽  
pp. 122-122
Author(s):  
Deniz Ozel ◽  
Betul Duran Ozel ◽  
Fuat Ozkan
Keyword(s):  
Prostate Cancer ◽  
Real Time ◽  
Shear Wave ◽  
Prostate Biopsy ◽  
Detection Rate ◽  
Shear Wave Elastography

Prediction of Significant Prostate Cancer at Prostate Biopsy and Per Core Detection Rate of Targeted and Systematic Biopsies Using Real-Time Shear Wave Elastography

2015 ◽  
Vol 95 (2) ◽  
pp. 189-196 ◽  
Author(s):  
Katharina Boehm ◽  
Lars Budäus ◽  
Pierre Tennstedt ◽  
Burkhard Beyer ◽  
Jonas Schiffmann ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Shear Wave ◽  
Prostate Biopsy ◽  
Predictive Accuracy ◽  
Specific Antigen ◽  
Shear Wave Elastography ◽  
Study Cohort ◽  
Detection Rates ◽  
Gleason Pattern ◽  
Targeted Biopsies

Introduction: Prostate cancer (PCa) detection is accompanied by overdiagnosis and mischaracterization of PCa. Therefore, new imaging modalities like shear wave elastography (SWE) are required. Aim: The aim of this study was to evaluate per-core detection rates (DRs) of targeted biopsies and systematic biopsies and to test if SWE findings can predict presence of clinically significant PCa (csPCa) at biopsy. Patients and Methods: Overall, 95 patients scheduled for prostate biopsy in our center underwent SWE. SWE findings were classified into suspicious or normal. Targeted biopsies were taken in up to 3 SWE-suspicious areas. csPCa was defined as the presence of Gleason pattern ≥4, level of prostate-specific antigen ≥10 ng/ml or >2 positive cores. Results: Overall DR for csPCa in our study cohort was 40%. Per-core DR for exclusively SWE-targeted cores versus systematic samples cores was 10.5 vs. 8.6% (p = 0.3). In the logistic regression models, individuals with suspicious SWE findings are at 6.4-fold higher risk of harboring csPCa (p = 0.03). Gain in predictive accuracy was 2.3% (0.82 vs. 0.84, p = 0.01). Conclusions: Presence of suspicious SWE findings is an independent predictor of csPCa. Therefore, SWE may be helpful in selecting patients for biopsy. Nonetheless, per-core DR for SWE-targeted cores was not statistically significant higher than DR of systematic sampled cores. Therefore, additional systematic biopsy is mandatory.

scholarly journals Prostate Cancer: Diagnostic Performance of Real-time Shear-Wave Elastography

Radiology ◽  
2015 ◽  
Vol 275 (1) ◽  
pp. 280-289 ◽  
Author(s):  
Jean-Michel Correas ◽  
Anne-Marie Tissier ◽  
Ahmed Khairoune ◽  
Viorel Vassiliu ◽  
Arnaud Méjean ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Real Time ◽  
Shear Wave ◽  
Diagnostic Performance ◽  
Shear Wave Elastography ◽  
Cancer Diagnostic

scholarly journals Stiffness of prostate gland measured by transrectal real-time shear wave elastography for detection of prostate cancer: a feasibility study

2019 ◽  
Vol 92 (1097) ◽  
pp. 20180970 ◽  
Author(s):  
Yonghao Ji ◽  
Litao Ruan ◽  
Wei Ren ◽  
Guoliang Dun ◽  
Jianxue Liu ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Real Time ◽  
Shear Wave ◽  
Feasibility Study ◽  
Prostate Gland ◽  
Shear Wave Elastography

Feasibility of transient elastography versus real-time two-dimensional shear wave elastography in difficult-to-scan patients

2016 ◽  
Vol 51 (11) ◽  
pp. 1354-1359 ◽  
Author(s):  
Benjamin Staugaard ◽  
Peer Brehm Christensen ◽  
Belinda Mössner ◽  
Janne Fuglsang Hansen ◽  
Bjørn Stæhr Madsen ◽  
...  
Keyword(s):  
Real Time ◽  
Shear Wave ◽  
Transient Elastography ◽  
Shear Wave Elastography ◽  
Two Dimensional

scholarly journals Which factors influence liver stiffness measured by real-time two dimensional shear wave elastography in patients on maintenance hemodialysis?

2021 ◽  
Vol 62 (1) ◽  
pp. 34-43
Author(s):  
Danijela Zjačić Puljiz ◽  
Ivana Kristina Delić Jukić ◽  
Marko Puljiz ◽  
Lučana Vicelić Čutura ◽  
Iva Jerčić Martinić-Cezar ◽  
...  
Keyword(s):  
Real Time ◽  
Shear Wave ◽  
Liver Stiffness ◽  
Shear Wave Elastography ◽  
Maintenance Hemodialysis ◽  
Two Dimensional

scholarly journals Correlation of Hypoechoic Lesions in Trans-rectal Ultrasound of Prostate with Histopathology in Prostate Cancer

2020 ◽  
Vol 42 (2) ◽  
pp. 76-79
Author(s):  
Dinesh Chataut ◽  
Babin Basnet ◽  
Benu Lohani ◽  
Sundar Suwal ◽  
Sharma Paudel ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Prostate Biopsy ◽  
Gold Standard ◽  
Detection Rate ◽  
Specific Antigen ◽  
Digital Rectal Examination ◽  
Elderly Male ◽  
Common Cancer ◽  
In Trans ◽  
Focus Detection

Introduction Prostate cancer is one of the most common cancer in elderly male. Suspicion of prostate cancer is based on increased Prostate Specific Antigen (PSA) level and abnormal digital rectal examination (DRE) findings. Transrectal ultrasonography (TRUS) can detect and localize hypoechoic lesions in prostate which are considered as suspicious for malignancy. TRUS can also guide for prostate biopsy, which is the gold standard for diagnosis of prostate cancer. The study was aimed to find out TRUS findings in suspected prostate cancer patients and correlate these findings with histopathological findings. MethodsProspective study was done in 66 males of age >40 years, sent for prostate biopsy in suspicion for prostate cancer (PSA >4 ng/ml, and/or abnormal DRE findings). Prostate was evaluated with TRUS and subsequently underwent TRUS guided six core biopsy of prostate. Total 396 cores of biopsy were taken. Histopathology reports were collected and correlated with the TRUS findings. ResultsTwenty three patients were positive for prostate cancer and 14 of them showed hypoechoic lesions in TRUS. Total 81 suspicious hypoechoic lesions were seen in prostate of all the patients and among them 42 lesions matched with histopathology report for cancer. Cancerous focus detection rate of TRUS was 51.85%. ConclusionTRUS is a supplementary tool in diagnosis of prostate cancer, however when used alone it has less sensitivity for detection of prostate cancer.

The impact of body position and exercise on the measurement of liver Young’s modulus by real-time shear wave elastography

2021 ◽  
pp. 1-10
Author(s):  
Xia Jiang ◽  
Li Li ◽  
Hong-Yuan Xue
Keyword(s):  
Healthy Volunteers ◽  
Real Time ◽  
Young’S Modulus ◽  
Shear Wave ◽  
Supine Position ◽  
Young's Modulus ◽  
Body Position ◽  
Shear Wave Elastography ◽  
Lateral Position ◽  
Left Lateral Position

BACKGROUND: In the past ten years, liver biopsies have been used as a method to accurately diagnose the stage of fibrosis. OBJECTIVE: This study aimed to evaluate whether body position and exercise affect the measurement of liver Young’s modulus of healthy volunteers by real-time shear wave elastography (RT-SWE). Methods: RT-SWE was used to measure liver Young’s modulus in the supine and left lateral positions of 70 healthy volunteers at rest and measure the liver Young’s modulus in the lying position before exercise, and at zero, five, and ten minutes of rest after exercise. RESULTS: The liver Young’s modulus in the left lateral position was significantly higher than in the supine position (P< 0.05), and the measured value in the supine position was more stable than the left lateral position. The liver Young’s modulus measured at zero minutes after exercise was significantly higher than that measured before exercise (P< 0.05). The liver Young’s modulus measured at five minutes after exercise was significantly higher than that measured at zero minutes after exercise (P<0.05) and was not statistically different from the measured value before exercise (P> 0.05). The liver Young’s modulus measured at ten minutes after exercise was significantly higher from that measured at zero minutes after exercise (P< 0.05) and was not statistically different from the measured value at five minutes after exercise (P> 0.05). CONCLUSION: Body position and exercise have a significant impact on the measurement of liver Young’s modulus. It is recommended that the examinees take a supine position during the measurement, and measurement should be conducted at least ten minutes after exercise.

Real-Time X-Plane Shear Wave Elastography Feasibility on Philips 2D xMatrix Transducer

2018 ◽  
Author(s):  
Man M Nguyen ◽  
Sheng-Wen Huang ◽  
Shiwei Zhou ◽  
Chanzhona Hu ◽  
Nik Ledoux ◽  
...  
Keyword(s):  
Real Time ◽  
Shear Wave ◽  
Shear Wave Elastography ◽  
Plane Shear
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