نتایج جستجو برای: cross sectional area
تعداد نتایج: 1042599 فیلتر نتایج به سال:
The cross-sectional area of the lumen of the proximal right coronary artery and the main stem of the left coronary artery were measured in 27 patients-6 normal subjects, 8 with minor coronary artery disease, 8 with aortic incompetence, 3 with primary myocardial disease, and 2 with a prolapsing posterior leaflet of the mitral valve and mild mitral incompetence. There was close linear correlation...
To examine the regional mechanical effects of selective genioglossus muscle activation on pharyngeal airway size and function, magnetic resonance images of the pharyngeal airway were obtained in five paralyzed, anesthetized cats over a range of positive and negative pressures in an isolated, sealed upper airway. When all results across pressure levels and pharyngeal regions were analyzed, genio...
Cross-sectional echocardiography was used to quantify volume in 21 canine left ventricles that were fixed in formalin and immersed in mineral oil. Area, length and diameter measurements were obtained from short- and long-axis cross-sectional images of the left ventricle and volume was calculated by seven mathematic models. Calculated volume was then compared, by linear regression and percent er...
[Purpose] This study examined the effects of neuromuscular joint facilitation on bridging exercises by assessing the cross-sectional area of the multifidus muscle and thickness of the musculus transversus abdominis. [Subjects] Twelve healthy men. [Methods] Four exercises were evaluated: (a) supine resting, (b) bridging resistance exercise involving posterior pelvic tilting, (c) bridging resista...
This paper presents a comparative study of transformations used to compute the area of a cross sections of the vocal tract from the midsagittal diameter of the vocal tract. MRI techniques have been used to obtain cross sections of the vocal tract in a study of French oral vowels uttered by two subjects. The measured cross sectional areas are compared to the cross sectional areas computed by the...
Introduction Traditionally trauma patients have been transported in the supine position to protect the spine. The ABCDE-principle however clearly points out the priority of securing airways. In Norway the lateral trauma position (LTP) has gradually been introduced since 2005. After checking airways and breathing, the unconscious trauma patient is rolled into a lateral (recovery) position, maint...
The aim of the present study was to evaluate the effect of joint immobilization on morphometric parameters and glycogen content of soleus muscle treated with clenbuterol. Male Wistar (3-4 months old) rats were divided into 4 groups (N = 6 for each group): control, clenbuterol, immobilized, and immobilized treated with clenbuterol. Immobilization was performed with acrylic resin orthoses and 10 ...
Pendrin is a Cl-/HCO3- exchanger expressed in the apical regions of renal intercalated cells. Following pendrin gene ablation, blood pressure falls, in part, from reduced renal NaCl absorption. We asked if pendrin is expressed in vascular tissue and if the lower blood pressure observed in pendrin null mice is accompanied by reduced vascular reactivity. Thus, the contractile responses to KCl and...
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