1. In 13 patients with hypertension and renal artery stenosis the stenosis was dilated by an intra-arterial balloon catheter under local anaesthesia. 2. In all but one instance arteriography after the dilatation showed considerable widening of the stenosed area. 3. Six patients had a temporary increase of serum creatinine that lasted only a few days. 4. In seven patients, who had a prolonged tr...

The usefulness of the ascorbate dilution method in demonstrating intracardiac shunts and valvular incompetence is known. The ascorbate technique can also be applied to the determination of the transit time of regional vascular beds such as the coronary and the renal systems. Furthermore, the determination of central circulation times may be helpful in the diagnosis of caval obstruction. The met...

buthotus saulcyi is one of the six most important scorpion species in khuzestan province, which its venom causes probable general effects on its victims. due to insufficient knowledge about mechanism of the venom functions and its target organs and highly dependence of health to normal function of kidney, this survey has been accomplished. in present study, 75 male wistar rats were selected and...

A promoting effect of large bowel contents on colonic carcinogenesis as seen in the animal model is still incompletely explored in man. We investigated simultaneously deoxycholate absorption (as marker of colonic mucosal exposure to tumour promoting bile salt metabolites), mouth-anus transit time, and the ratio of anaerobic to aerobic bacteria in stool in 10 persons with colonic adenomas and in...

Although normalised residual activity (NORA) and output efficiency (OE) are usually measured at a fixed time t, their dependency on t may affect the prediction of mean transit time (MTT). This study aimed to evaluate their degree of dependency on t and to determine an optimal time of measurement by assessment of their relationship with MTT for various times t. A simulation model generated 232 c...

Objective- Laparoscopic partial nephrectomy (LPN) has been proven to be a safe and effective technique in human. This study was conducted to evaluate the feasibility and safety of utilizing laparoscopic partial nephrectomy in dogs and to compare this technique with open routine partial nephrectomy for the first time in Iran. Design- Experimental study. Animals- Sixteen large mixed-breed femal...

Temporal coordination of services, as a crucial aspect of integration in public transport systems, has always been a big concern for transit planners and schedulers. One of the major issues in the way of coordinating transit services is the lack of a robust measure of effectiveness for assessing the quality of temporal coordination in public transport systems. Even though the network-wide summa...

Introduction: Arterial Spin Labeling (ASL) provides a method to non-invasively assess tissue perfusion, and has recently been applied to study the kidney [1]. The importance of ASL methods to study the kidney has been highlighted due to the diagnosis of Nephrogenic Systemic Fibrosis (NSF), a side effect of gadolinium based contrast agents [2]. Prior ASL studies of the kidney typically acquire d...