Two nodules (arrows), one hypoechoic and one hyperechoic, are seen. Both lesions were later confirmed to be HCC on contrast enhanced US Full size image For patients with VIS-C, the recommendation is to repeat US in 3 months, as several studies have shown that > 50% of subsequent exams...
The possibility to realize a quantitative evaluation of nerve density on ultrasound is clinically important to enhance the evaluation of peripheral nerve disorders. We developed software that quantifies the ratio between the hypoechoic and hyperechoic areas of peripheral nerves on ultrasound. Nerve ...
Whenever unenhanced US failed to show any lesion or demonstrated a noncystic hyperechoic or hypoechoic lesion, a low-mechanical index, contrast-enhanced US was carried out. During the arterial phase, CEUS was focused on the area reflecting the CT finding, while the entire organ was explored ...
Loss of bowel wall stratification was defined as a hypoechoic disruption of the 3 distinct wall layers that characterize a normal bowel wall stratification. Colour Doppler acquisitions were performed using standardized scanning pre-sets during patient breath-hold. The velocity scale was set to 5 cm/...
(two in longitudinal and two in cross-section orientation) was considered. Loss of bowel wall stratification was defined as a hypoechoic disruption of the 3 distinct wall layers that characterize a normal bowel wall stratification. Colour Doppler acquisitions were performed using standardized scanning ...
wedge or rounded hypoechoic, pleural based lesions. These lesions are thought to be due to embolic occlusions that resulted in either focal atelectasis with extravasation of blood or focal infarction of the lung parenchyma . However, they state in their publication that “Several methodological drawbac...
(cm) 3.2 0.5–20 3.2 0.5–10 0.738 Echogenicity Hypoechoic Hyperechoic Isoechoic 35 (47.2) 40 (48.2) 8 (9.6) 35 (87.5) 2 (5.0) 3 (7.5) <0.001 Multiplicity Single Multiple 45 (54.2) 38 (45.8) 20 (50.0) 20 (50.0) 0.661 Margin Well-defined Almost well-defined Ill defined 24 (28.9...
The echogenicity of the lesion was noted as hyperechoic, isoechoic, hypoechoic, and mixed echo with respect to the surrounding liver tissue at baseline US. Contrast wash-in is considered as hyperechoic in comparison to the surrounding liver and the enhancement area is at least more than half of...
The boundary between the TZ and PZ is the surgical capsule for transurethral prostatectomy and is often sharply demarcated by TRUS as a hypoechoic convex line. With increasing BPH, this boundary becomes less convex. This margin is often peppered with corpora amylacea that are markedly hyperechoic. ...
Fascicles were defined as hypoechoic areas surrounded by hyperechoic borders within the nerve and the CSA measurement was performed with the cursor placed within this hyperechoic margin8. Figure 1 Median and Ulnar nerve in CIDP (A), in anti-MAG neuropathy (B), d-CIDP (C) and in healthy ...