The volume flow rate of blood in the portal vein and the hepatic artery was measured using a duplex ultrasound system. Two sections of the hepatic artery were studied; the common hepatic artery where measurements were made just after the bifurcation of the coeliac axis to splenic and hepatic arteries and the hepatic artery itself, where measurements were made just proximal to the porta hepatis ...

PURPOSE A native vessel is preferable to an artificial graft for dialysis access. Duplex ultrasound (DUS) is noninvasive, cost-effective modality to evaluate the vessels for dialysis. The purpose of this study was to compare the rates of utilization of native vessels after preoperative imaging with DUS and contrast venography (CV). MATERIALS AND METHODS A retrospective review was performed on...

The assessment of carotid artery stenosis severity using CDUS is largely dependent on the pattern and velocities of blood flow within the carotid arteries, with the peak systolic velocity (PSV) in the internal carotid artery generally serving as the primary diagnostic parameter. There are a number of cardiac disorders that can affect flow velocities and Doppler waveforms within the cerebrovascu...

OBJECTIVES To assess duplex ultrasound (DUS) parameters, and predicti the outcome of varicocele ligation in male infertility.  METHODS This retrospective and follow up study was conducted at Dr. Sulaiman Al Habib Hospital, AlQassim, Saudi Arabia between January 2011 and December 2012. Eighty-two patients were selected, who presented with clinical/subclinical varicocele and male infertility. A...

In this paper using strongly duplexes we introduce a new class of (semi)hypergroups. The associated (semi)hypergroup from a strongly duplex is called duplex (semi)hypergroup. Two computer programs written in MATLAB show that the two groups $Z_{2n}$ and $Z_{n}times Z_{2}$ produce a strongly duplex and its associated hypergroup is a complementary feasible hypergroup.

Objective: To determine frequency of carotid stenosis in patients with recurrent ischemic stroke by Doppler ultrasound Study design: Cross sectional study Place and Duration: This is performed at Divisional Headquarter Teaching Hospital, Mirpur AJK from January 2021 to 2022 Methodology: conducted sample size 99 patients, history minor or TIA within three month. Now presented .All advised extrac...

The diagnosis and management of peripheral vascular disease has undergone tremendous change during the past two decades. Diagnostic angiography is complemented and, in some cases, even supplanted by digital subtraction techniques, duplex sonography, intravascular ultrasound, and magnetic resonance imaging. Similarly, percutaneous transluminal angioplasty has evolved from a novelty to a vital co...

Background and Purpose—Real-time compound ultrasound imaging is a new technique for improving the image quality of B-mode scanning. We investigated the value of this method for the characterization of atherosclerotic plaques in the internal carotid artery. Methods—Thirty-two patients (22 men, 10 women; mean age, 75 years) with plaques of the internal carotid artery as identified by high-resolut...

BACKGROUND AND PURPOSE Color-coded perfusion maps can be calculated from ultrasound harmonic gray-scale imaging data after ultrasound contrast agent bolus injection to analyze brain tissue perfusion. First reports indicate that this method can display cerebral perfusion deficits in acute ischemic stroke. We performed a prospective patient study to evaluate this approach. METHODS Thirty consec...

A65-year-old woman was referred to the vascular laboratory after coronary angiography and stent insertion via an 8F right femoral artery sheath. The patient received ticlopidine 500 mg after the procedure. A large pulsatile mass with a diffuse hematoma developed several hours after removal of the sheath from the groin, and a 4.2-cm false aneurysm arising from the common femoral artery was confi...