نتایج جستجو برای: cross sectional area
تعداد نتایج: 1042599 فیلتر نتایج به سال:
Several methods for measuring cross-sectional areas of cat extensor digitorum communis tendons. were evaluated in terms of repeatability. Estimates of correction factors to be used in relating measurements by different methods were also obtained. The measurements examined included: (1) moist specimen weight per unit length, (2) moist specimen displacement volume per unit length, (3) dry specime...
PURPOSE To determine the effect of reactive hyperemia on human forearm vein area. METHODS After obtaining ethics approval and informed consent, an automatic tourniquet was applied to the forearms of 20 healthy subjects for one, two, and three minutes, at pressures of 25 mmHg, 200 mmHg, then 25 mmHg. A blinded radiographer measured the cross-sectional area of the cephalic vein at the wrist usi...
Objectiveto assess the knowledge of HIV/AIDS and MTCT (Mother-to-child transmission) among pregnant women. Methoda cross-sectional study was conducted on 106 pregnant women attending the OPD of PHC Sampatchak from January 2012 to June 2012. The study tool consisted of self-developed, pre-tested questionnaire. Results were analysed using SPSS latest version. Results88.67% of the women were illit...
We performed cross-sectional echocardiograms at rest, during supine bicycle exercise, and after sublingual nitroglycerin administration in 28 patients suspected of having ischemic heart disease. Technically adequate exercise cross-sectional echocardiograms were obtained in 20 patients (71%). Ten patients had new areas of reversible segmental dysynergy, and all 10 had significant stenoses of cor...
BACKGROUND AND PURPOSE This study aimed to determine the correlation of in vivo ultrasound measurements of intima-media thickening (IMT), lumen diameter, and cross-sectional area of the common carotid artery (CCA) with corresponding measurements obtained by gross pathology and histology. METHODS Sixty-six moribund neurological patients (mean age 71 years) underwent B-mode ultrasound of the CC...
OBJECTIVE To measure the effect of septoplasty on the volume of inferior turbinate in patients with a deviated nasal septum. DESIGN In this retrospective analysis, patients who underwent septoplasty without turbinate surgery from May 1, 2003, through April 30, 2006, were studied. The thicknesses and cross-sectional areas of mucosa and conchal bones were measured with computed tomography befor...
OBJECTIVES This study compared cross-sectional three-dimensional (3D) transesophageal echocardiography (TEE) to two-dimensional (2D) TEE as methods for predicting aortic regurgitation after transcatheter aortic valve replacement (TAVR). BACKGROUND Data have shown that TAVR sizing using cross-sectional contrast computed tomography (CT) parameters is superior to 2D-TEE for the prediction of par...
The prediction of blood-brain barrier permeation is vitally important for the optimization of drugs targeting the central nervous system as well as for avoiding side effects of peripheral drugs. Following a previously proposed model on blood-brain barrier penetration, we calculated the cross-sectional area perpendicular to the amphiphilic axis. We obtained a high correlation between calculated ...
OBJECTIVE To analyse bilateral differences in the cross-sectional area of the internal mammary artery (IMA) and vein (IMV) in breast cancer patients compared to healthy controls. MATERIALS AND METHODS On 135 breast MRIs the cross-sectional areas of the IMA and IMV were measured on the left and right side in the second and third intercostal space (ICS) by two independent readers. Differences w...
OBJECTIVE Previously, we proposed long-range optical coherence tomography (LR-OCT) to be an effective method for the quantitative evaluation of the nasal valve geometry. Here, the objective was to quantify the reduction in the internal nasal valve angle and cross-sectional area that results in subjective nasal airway obstruction and to evaluate the dynamic behavior of the valve during respirati...
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