background: to evaluate the efficacy of color doppler ultrasound (cdus) in differentiating benign and malignant cervical lymph nodes by detecting differences in blood flow patterns. materials and methods: in this cross‑sectional prospective study, 25 untreated patients with clinical evidence of cervical lymphadenopathy were evaluated. cdus was performed for 80 cervical lymph nodes. the gray sca...

PURPOSE The aim of this study was to validate a computational fluid dynamics (CFD) simulation of flow-diverter treatment through Doppler ultrasonography measurements in patient-specific models of intracranial bifurcation and side-wall aneurysms. METHODS Computational and physical models of patient-specific bifurcation and sidewall aneurysms were constructed from computed tomography angiograph...

Penile Mondor's disease is a thrombophlebitis of the superficial dorsal vein of the penis. It is a rare clinical diagnosis and generally resolves spontaneously. A simple physical examination is sufficient for diagnosis but color Doppler ultrasonography is often carried out as a further investigation. We describe two patients who developed priapism due to penile Doppler ultrasonography which was...

this is retrospective double-blind research, which was carried out in imam khomeini hospital in order to study the accuracy of color doppler ultrasonography for detecting the site and grade of stenosis in cervical carotid artery. 40 patients with mean age of 62 years studied with color doppler before dsa angiography. the most common sites of stenosis were left internal carotid (39.5%) and right...

OBJECTIVE We report three cases of high-flow priapism in three young patients who presented erectile dysfunction after perineal trauma. METHODS Complete clinical evaluation, blood tests, color Doppler ultrasonography (US), arteriography and selective embolization were performed. RESULTS The clinical history and physical assessment were compatible with high-flow priapism. Color Doppler US sh...

Acute ureteric colic caused by ureteric calculus disease is a commonly encountered clinical problem. Ultrasonography is one of the treatment modality available in the evaluation of patients with acute urologic disorders. Color Doppler Ultrasonography is an advancement of the conventional ultrasonography in which the Doppler Effect is employed. It can be used to visualize "ureteric jets". The pu...

PURPOSE To determine effectiveness of Valsalva maneuver and standing position on scrotal color Doppler ultrasound (CDU) for the varicocele diagnosis. MATERIALS AND METHODS We reviewed the physical examination and CDU finding in 87 patients who visited National Police Hospital from January 2011 to April 2014. Diameters of pampiniform plexus were measured bilaterally during resting and Valsalva...

Within the last decade, musculoskeletal ultrasonography is playing an increasingly important role in the evaluation and monitoring of patients with chronic infl ammatory arthritis. High-resolution musculoskeletal ultrasonography allows direct assessment of intra-articular and periarticular infl ammatory activity and structural damage in infl ammatory arthritis. There have been a growing number ...