OBJECTIVE The aim of this study was to investigate differences in Doppler parameters between severe transplant renal artery stenosis (TRAS, arterial lumen reduction >80%) with end-to-end (EE) arterial anastomosis and that with end-to-side (ES) arterial anastomosis. METHODS We retrospectively reviewed color duplex sonography (CDUS) and digital subtraction angiography (DSA) images in 38 patient...

IT HAS been appreciated for many years that characteristic alterations in the configuration of the central and peripheral arterial pressure pulses occur in the presence of abnormalities of the aortic valve, whether they are induced experimentally or occur in patients with aortic valve disease.1--~It is also recognized that the arterial pressure pulse is modified in patients with idiopathic hype...

Several thousand life-saving liver transplants are performed each year. One of the most common causes of early transplant failure is arterial stenosis of the anastomotic junction. Early detection of transplant arterial stenosis can help prevent transplant failure and the need to re-transplant. Doppler ultrasound is the most common screening method, but it suffers from poor specificity. Positive...

The severity of coronary arterial stenosis is usually measured by either simple geometrical parameters, such as percent diameter stenosis, or hemodynamically based parameters, such as the fractional flow reserve (FFR) or coronary flow reserve (CFR). The present study aimed to establish a relationship between actual hemodynamic conditions and the parameters that define stenosis severity in the c...

In this issue of Korean Circulation Journal, Ko et al. report on the effectiveness and safety of percutaneous implantation of pulmonary arterial stents in congenital heart disease between 1999 and 2010 in one institute. Since Dr. Mullins recognized the potential for stents to treat pulmonary arterial stenosis effectively which were compared to the surgical methods, many reports about these expe...

BACKGROUND AND PURPOSE Intracranial arterial steno-occlusive disease is prevalent among non-white populations. We explored whether a similar pattern exists in Egyptians and assessed its clinical-radiological associations. METHODS Consecutive acute ischemic stroke patients were recruited for 6 months and had magnetic resonance imaging/magnetic resonance angiography of brain within 2 days of th...

IT HAS been appreciated for many years that characteristic alterations in the configuration of the central and peripheral arterial pressure pulses occur in the presence of abnormalities of the aortic valve, whether they are induced experimentally or occur in patients with aortic valve disease.1--~It is also recognized that the arterial pressure pulse is modified in patients with idiopathic hype...

OBJECTIVE Arterial stenosis is a major obstacle for subsequent interventional procedures. We hypothesized that the stenosis is caused by gelatin sponge embolization and performed an experimental study in a rabbit renal model. MATERIALS AND METHODS A total of 24 rabbits were embolized with porcine gelatin sponge particles injected into the renal arteries. Four rabbits were sacrificed on 1 day,...

Although aphasia and hemispatial neglect are classically labeled as cortical deficits, language deficits or hemispatial neglect following lesions to subcortical regions have been reported in many studies. However, whether or not aphasia and hemispatial neglect can be caused by subcortical lesions alone has been a matter of controversy. It has been previously shown that most cases of aphasia or ...

BACKGROUND AND PURPOSE VB artery stenosis is associated with a high risk of recurrent ischemic events, and knowledge about the hemodynamic relevance of VB stenosis is important for clinical decision making. In this study, multiple inflow pulsed ASL MR imaging was assessed for its ability to measure CBF and ATT in patients with VB disease. MATERIALS AND METHODS ASL was performed on a 3T MR ima...