Many previous studies have reported that regional cerebral blood flow (rCBF) aberrations may be one of the pathological characteristics of depression and rCBF has demonstrated a certain degree of asymmetry. However, studies investigating the cerebral blood perfusion asymmetry changes of drug-naïve patients experiencing their first episode of major depression using pseudo-continuous arterial spi...

BACKGROUND AND OBJECTIVE During laser therapy of port wine stain (PWS) birthmarks, regions of perfusion may persist. We hypothesize that such regions are not readily observable even when laser surgery is performed by highly experienced clinicians. The objective of this study was to use objective feedback to assess the acute vascular response to laser therapy. STUDY DESIGN/MATERIALS AND METHOD...

Aim: We aimed to determine the difference between cerebral perfusion and cortical thickness first attack recurrent in major depression patients.
 Material Method: Our study was conducted prospectively 01.03.2017-03.03.2018 Izzet Baysal University Psychiatry department. 40 patients (21 episodes 19 episodes) diagnosed with according DSM 5 by American Psychiatric Association a control group o...

AIM To evaluate the role of computed tomography (CT) perfusion imaging in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS Seventeen patients (9 men, 8 women) with newly diagnosed HCC, proven by biopsy, were evaluated with 256-slice helical CT. Perfusion parameters of blood flow (BF), blood volume (BV), arterial perfusion (AP), portal perfusion (PP), and hepatic perfusion i...

Optical micro-angiography (OMAG) was developed to achieve volumetric imaging of the microstructures and dynamic cerebrovascular blood perfusion in mice with capillary level resolution and high signal-to-background ratio. In this paper, we present a high-speed and high-sensitivity OMAG imaging system by using an InGaAs line scan camera and broadband light source at 1.3 mum wavelength for enhance...

This comprehensive review summarizes the evidence regarding use of cerebral autoregulation-directed therapy at the bedside and provides an evaluation of its impact on optimizing cerebral perfusion and associated functional outcomes. Multiple studies in adults and several in children have shown the feasibility of individualizing mean arterial blood pressure and cerebral perfusion pressure goals ...

Background Stress perfusion cardiac MRI (CMR) with a high relaxivity blood-pool contrast agent should allow for improved quantification of myocardial perfusion and myocardium blood volume in patients with coronary artery disease (CAD). In the current study, we sought to evaluate the diagnostic performance and image quality of stress perfusion CMR using the intravascular contrast agent gadofoves...

BACKGROUND Hyperthyroidism and chronic kidney disease (CKD) are common in elderly cats. Consequently, both diseases often occur concurrently. Furthermore, renal function is affected by thyroid status. Because changes in renal perfusion play an important role in functional renal changes in hyperthyroid cats, investigation of renal perfusion may provide novel insights. OBJECTIVES To evaluate re...

Introduction: The arterial input function (AIF) plays a crucial role in mapping Cerebral Blood Volume, Mean Transit Time, and Cerebral Blood Flow (CBV, MTT, and CBF) in MR perfusion studies. Automation of the process of selecting an AIF for use in further calculation could substantially reduce bias in hemodynamic parameters introduced by operator dependency and accelerate perfusion analysis. Wh...

Acute common carotid occlusion in rabbits causes a reduction in ocular blood volume and ciliary artery blood pressure. At all levels of intraocular pressure, cervical sympathetic stimulation reduces these changes. The ocidar blood volume reduction after acute common carotid occlusion is not linearly related to the absolute blood pressure change or to the lowest blood pressure reached in the cil...