Abstract:
:The status of radioactive tracer studies in cardiovascular diagnosis is summarized. Planning guidelines are suggested for a hospital nuclear medical service including a central nuclear medical facility and satellite units, and resource criteria are given for professional personnel including training and duties, equipment, space, and support system. The administrative organization of a nuclear medical service and case loads are discussed. Guidelines for equipment maintenance and quality controls are described.
journal_name
Circulationjournal_title
Circulationauthors
Adelstein SJ,Jansen C,Wagner HN Jrsubject
Has Abstractpub_date
1975-07-01 00:00:00pages
A9-A22issue
1eissn
0009-7322issn
1524-4539journal_volume
52pub_type
杂志文章相关文献
CIRCULATION文献大全abstract::We studied isochronal maps of ventricular activation during ventricular arrhythmias induced by programmed premature stimulation in dogs 3-5 days after ligation of the left anterior descending coronary artery. The entire epicardial surface and selective intramural sites were recorded using a computerized multiplexing t...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.67.1.11
更新日期:1983-01-01 00:00:00
abstract::The effect of acute alterations in coronary blood flow (CBF) on left ventricular (LV) end-diastolic wall thickness was measured by reflected ultrasound in twelve anesthetized dogs. During five minutes of coronary ligation, wall thickness decreased from a control of 9.0 +/- 0.3 mm to 8.1 +/- 0.3 mm (P less than 0.001);...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.56.4.593
更新日期:1977-10-01 00:00:00
abstract:BACKGROUND:It was the aim of this study to assess the long-term effects of physical exercise and low-fat diet on the progression of coronary artery disease. At the beginning of the study, 113 male patients with coronary artery disease were randomized to an intervention group (n=56) or a control group (n=57); 90 patient...
journal_title:Circulation
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1161/01.cir.96.8.2534
更新日期:1997-10-21 00:00:00
abstract:BACKGROUND:Endogenous nitric oxide (NO) reduces sympathetic vasoconstriction by attenuating neuronal excitability in the brain stem and inhibition of postganglionic neurotransmission. We studied whether this modulation of sympathetic circulatory control by NO may be altered during chronic administration of NO donor dru...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.97.23.2352
更新日期:1998-06-16 00:00:00
abstract:BACKGROUND:There is an elevated risk for poor outcomes after heart transplant (HTx) in patients sensitized to human leukocyte antigens including graft dysfunction, acute cellular and antibody-mediated (AMR) rejection, and cardiac allograft vasculopathy. We report our experience with human leukocyte antigens-sensitized ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.107.709022
更新日期:2007-09-11 00:00:00
abstract:BACKGROUND:The effect of effective refractory period (ERP) shortening on the vulnerability and characteristics of induced functional reentry in the ventricle remain poorly defined. We hypothesized that ERP shortening increases ventricular vulnerability to reentry and accelerates its rate, as is the case in the atrium. ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.99.5.704
更新日期:1999-02-09 00:00:00
abstract::The linearity and sensitivity of the end-systolic pressure-volume (P-Ves) relation to the inotropic state of the left ventricle were investigated in 11 patients with coronary heart disease and one patient with congestive cardiomyopathy. To minimize autonomic reflex responses, propranolol, 0.15 mg/kg, and atropine, 1 m...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.63.6.1216
更新日期:1981-06-01 00:00:00
abstract::Despite a 2% to 3% prevalence of echocardiographically defined mitral valve prolapse (MVP) in the general population, the actual burden, risk stratification, and treatment of the so-called arrhythmic MVP are unknown. The clinical profile is characterized by a patient, usually female, with mostly bileaflet myxomatous d...
journal_title:Circulation
pub_type: 杂志文章,评审
doi:10.1161/CIRCULATIONAHA.118.034075
更新日期:2019-09-10 00:00:00
abstract:BACKGROUND:Although a major role of coronary thrombosis in the pathogenesis of unstable angina has been demonstrated, the results of a series of studies have suggested that activation of the hemostatic system may not be confined to ischemic episodes. The purpose of this study was to investigate the temporal relation be...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.93.12.2121
更新日期:1996-06-15 00:00:00
abstract:BACKGROUND:Operator-independent isotropic 3D MRI may greatly simplify the assessment of complex morphology in congenital heart disease. We sought to evaluate the reliability of this new approach. METHODS AND RESULTS:In 31 adolescent and adult patients (age, 6 to 42 years; median, 16 years) with congenital heart diseas...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.CIR.0000134282.35183.AD
更新日期:2004-07-13 00:00:00
abstract::This 2020 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations for advanced life support includes updates on multiple advanced life support topics addressed with 3 different types of reviews. Topics were prioritized on the basis of both recen...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIR.0000000000000893
更新日期:2020-10-20 00:00:00
abstract::Cross-sectional echocardiographic studies of the aortic arch and proximal descending aorta were performed in 18 patients with coarctation of the aorta and 20 normal subjects. In normals the aortic arch and proximal descending aorta appeared as an arcuate, echo-free structure curving across the plane of the scan. There...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.57.3.498
更新日期:1978-03-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to test the hypothesis that a single meandering functional reentrant wave front can result in rapid and irregular electrogram activity in human atrial tissues. METHODS AND RESULTS:The study used the explanted hearts of five human cardiac transplant recipients. Three right and t...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.96.9.3013
更新日期:1997-11-04 00:00:00
abstract:BACKGROUND:During the initial phase of an ischemic insult, left ventricular (LV) performance depends on the complex interaction between oxygen deprivation, vascular turgor, and accumulation of metabolites. In experimental preparations, low-flow ischemia decreases systolic shortening and increases diastolic LV distensib...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.88.2.461
更新日期:1993-08-01 00:00:00
abstract:BACKGROUND:Radiofrequency catheter ablation is the treatment of choice for patients with paroxysmal supraventricular tachycardias refractory to medical therapy. However, in symptomatic patients with inappropriate sinus tachycardia resistant to drug therapy, catheter ablation of the His' bundle with permanent pacemaker ...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.92.10.2919
更新日期:1995-11-15 00:00:00
abstract:BACKGROUND:Factors leading differentially to the development of isolated diastolic (IDH), systolic-diastolic (SDH), and isolated systolic (ISH) hypertension are poorly understood. We examined the relations of blood pressure (BP) and clinical risk factors to the new onset of the 3 forms of hypertension. METHODS AND RES...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.CIR.0000157159.39889.EC
更新日期:2005-03-08 00:00:00
abstract::Between 1976 and 1982, 413 consecutive patients underwent valvular replacement with a bioprosthesis. Aortic valve replacement was performed in 240 patients, mitral valve replacement in 132, and multiple-valve replacement in 41. Four prostheses were employed: Carpentier-Edwards porcine (n = 336), Angel-Shiley porcine (...
journal_title:Circulation
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract:BACKGROUND:Retrospective studies in dialysis patients have reported increased survival after coronary artery bypass (CAB) compared with coronary artery stenting and PTCA. The purpose of this study was to compare the long-term outcome of renal transplant recipients after stent, PTCA, or CAB with or without internal mamm...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.CIR.0000129317.12580.68
更新日期:2004-06-15 00:00:00
abstract:BACKGROUND:Lysosomal carboxypeptidase, cathepsin A (protective protein, CathA), is a component of the lysosomal multienzyme complex along with beta-galactosidase (GAL) and sialidase Neu1, where it activates Neu1 and protects GAL and Neu1 against the rapid proteolytic degradation. On the cell surface, CathA, Neu1, and t...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.107.733212
更新日期:2008-04-15 00:00:00
abstract:BACKGROUND:The present study investigated whether the ACAT inhibitor avasimibe can reduce atherogenesis independently of its cholesterol-lowering effect in ApoE*3-Leiden mice. METHODS AND RESULTS:Two groups of 15 female ApoE*3-Leiden mice were put on a high-cholesterol (HC) diet; 1 group received 0.01% (wt/wt) avasimi...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.103.13.1778
更新日期:2001-04-03 00:00:00
abstract:BACKGROUND:This study was performed to report causes of death or graft loss and to identify possible pretransplant risk factors for death or graft loss in infants after heart transplantation. METHODS AND RESULTS:Pretransplant risk factors were compared for 153 infants registered for heart transplantation within 90 day...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.92.9.206
更新日期:1995-11-01 00:00:00
abstract:BACKGROUND:The most troublesome complication of acute pericarditis is recurrent episodes of pericardial inflammation, occurring in 15% to 32% of cases. The cause of the recurrence is usually unknown, although in some cases it may be traced to viral infection or may be a consequence of coronary artery bypass grafting. T...
journal_title:Circulation
pub_type: 杂志文章,多中心研究
doi:10.1161/01.cir.97.21.2183
更新日期:1998-06-02 00:00:00
abstract::A 10 mg bolus of the angiotensin blocker saralasin was injected 113 times in 68 subjects with essential or renovascular hypertension. Ninety percent of injections caused a transient increase in blood pressure, which correlated with plasma renin activity (PRA) (r = -0.54); Mean increase at 2 minutes was 21/13.4 mm Hg (...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.57.6.1165
更新日期:1978-06-01 00:00:00
abstract::The mosaic of essential hypertension seems to be gaining new tiles at an accelerating rate. Of the many pathophysiological factors and markers for the factors that can be considered as possible elements of a profiling algorithm, there are relatively few with solid data to support their use. Use of plasma renin activit...
journal_title:Circulation
pub_type: 杂志文章,评审
doi:
更新日期:1989-12-01 00:00:00
abstract:BACKGROUND:Anecdotal cases of familial clustering of peripartum cardiomyopathy (PPCM) and familial occurrences of PPCM and idiopathic dilated cardiomyopathy (DCM) together have been observed, suggesting that genetic factors play a role in the pathogenesis of PPCM. We hypothesized that some cases of PPCM are part of the...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.109.929646
更新日期:2010-05-25 00:00:00
abstract:BACKGROUND:The substitution variants K35A,E38A,K74A, E75A,R77A (SakSTAR.M38) and K74A,E75A,R77A,E80A, D82A (SakSTAR.M89) of recombinant staphylokinase (SakSTAR) with reduced antibody reactivity were assayed for thrombolytic potency and antibody induction in animal models and in patients. METHODS AND RESULTS:In a 125I-...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.94.2.207
更新日期:1996-07-15 00:00:00
abstract::Experimental studies have shown that among dogs with a healed myocardial infarction, depressed baroreflex sensitivity (BRS) identifies a subgroup at higher risk for sudden death. We have examined the relation among BRS, several clinical cardiovascular variables, and subsequent mortality in 78 patients below the age of...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.78.4.816
更新日期:1988-10-01 00:00:00
abstract:BACKGROUND:Hutchinson-Gilford progeria syndrome is an ultrarare segmental premature aging disease resulting in early death from heart attack or stroke. There is no approved treatment, but starting in 2007, several recent single-arm clinical trials administered inhibitors of protein farnesylation aimed at reducing toxic...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.113.008285
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Natural history of aortic dissection (AD) with intimal tear in the descending or abdominal aorta and retrograde extension into the ascending aorta (retrograde AD) remains unknown. The purpose of this study was to elucidate medium-term prognosis of patients with retrograde AD. METHODS AND RESULTS:Study popul...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/01.cir.0000087424.32901.98
更新日期:2003-09-09 00:00:00
abstract:BACKGROUND:In recent decades, the rates of incident acute myocardial infarction (AMI) have declined in the United States, yet disparities by sex remain. In an integrated healthcare delivery system, we examined temporal trends in incident AMI among women and men. METHODS:We identified hospitalized AMI among members ≥35...
journal_title:Circulation
pub_type: 杂志文章
doi:10.1161/CIRCULATIONAHA.119.044738
更新日期:2020-02-18 00:00:00