Effects of Iopromide on Vasoactive Peptides and Allergy-Mediated Substances in Healthy Volunteers

Quantitative Measurements of Perfusion and Permeability of Oropharyngeal and Oral Cavity Cancer, Recurrent Disease, and Associated Lymph Nodes Using First-Pass Contrast-Enhanced Computed Tomography Studies

“…15 A small vasodilatory effect of the contrast agent can be not the reason of this discrepancy. 16 The primary tumor-to-muscle blood volume ratio in our study was 4.08 Ϯ 2.30, which is close to the tumor-to-muscle blood volume ratio of roughly 3.47 estimated by Brix et al, 15 using the two-compartmental model. Nevertheless, radiologists have to be cautious on a delineation of mucosal or submucosal tumor on the basis of BV because of the well-perfused with high BV values oropharyngeal mucosa.…”

Plasma endothelin, nitric oxide and atrial natriuretic peptide levels in humans after abdominal angiography

“…Significant changes were observed in ANP levels after the administration of CM in this study, which agrees with previous studies (8, 27, 28). Increased plasma ANP levels are seen in pathophysiologic conditions associated with increased cardiac filling pressure, such as that occurring in patients with chronic renal failure (24) and congestive heart failure (17, 29).…”

“…ANP is one of the homeostatic substances that controls total body water and blood sodium concentration, in conjunction with the renin‐angiotensin‐aldosterone system, antidiuretic hormone and the sympathetic nervous system. The role of ANP in regulating vascular volume can be summarized by its direct renal effects, increasing glomerular filtration rate, renal blood flow, urine volume and sodium excretion (27). Injection of CM is followed by a rapid shift of body water from the intracellular and extravascular space to the intravascular space (2).…”

Regional Blood Flow, Capillary Permeability, and Compartmental Volumes: Measurement with Dynamic CT—Initial Experience

“…The regional blood volume value of 4.9 mL/100 g Ϯ 1.3 determined with our CT technique is slightly higher than the literature values, which are in the range between 1.8 mL/ 100 g Ϯ 0.1 and 4.7 mL/100 g Ϯ 0.6. This may be explained (a) by the fact that the neck muscles-in contrast to the muscles of the leg or forearm-were not at rest since the patients were instructed not to move their heads during the examination period and (b) by a small vasodilatory effect of the employed nonionic contrast medium (33,34). The relative fractions of the plasma (f P ϭ 0.04 mL/mL Ϯ 0.01) and interstitial tissue compartment (f I ϭ 0.12 mL/mL Ϯ 0.01) also coincide well with scarce literature data available for muscle tissue.…”