PURPOSE The effectiveness of real-time feedback using an audible pulse in renal Doppler ultrasonography was evaluated. METHODS This study was approved by the institutional review board of our hospital. Written informed consent was provided by all volunteers at enrollment. The 26 healthy volunteers enrolled in this study underwent Doppler ultrasound of both kidneys using audible and inaudible ...

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...

introduction: arterial stiffness is an important predictor of cardiovascular risk. several indices have been  introduced to estimate the arterial stiffness based on the changes in the brachial blood pressure. since the  substitution  of  the  blood  pressure  changes  in  the  central  arteries  such  as  carotid  with  the  blood  pressure  changes in the brachial results in error in the blood...

A detailed protocol for the performance and interpretation of duplex ultrasound evaluation of hemodialysis access is described.

The spatial resolution of a conventional imaging lidar system is constrained by the diffraction limit of the telescope's aperture. The combination of the lidar and synthetic aperture (SA) processing techniques may overcome the diffraction limit and pave the way for a higher resolution air borne or space borne remote sensor. Regarding the lidar transmitting frequency modulation continuous-wave (...

AIM To determine whether introducing three-dimensional (3D) ultrasonography with power Doppler facilities as a secondary screening test, preceded by annual transvaginal grayscale ultrasonography (TVUS) (followed by transvaginal color Doppler (TVCD) in selected cases) as a primary screening test for ovarian cancer improves the accuracy of ovarian cancer screening studies. METHODS Annual TVUS w...

During last year, we have more information about minimally invasive therapeutic procedures in medicine that have become very popular. The reasons included reducing risk compared to classic surgical treatment, easy recovery, less complications, and lower cost. One of these methods is ultrasonography-guided radiofrequency ablation (RFA). Low-level laser therapy was first reported in chronic autoi...

The transabdominal ultrasonography (US) is recognized as a useful tool for the diagnosis of pancreatic diseases, it is also true that its essential weakness of “not being able to see through air” becomes a considerable handicap when observing the pancreas, which is for the most part located behind the gastrointestinal organs. Endoscopic ultrasonography (EUS) was developed to minimize the effect...