نتایج جستجو برای: radioisotope imaging
تعداد نتایج: 459668 فیلتر نتایج به سال:
In ischemic cardiomyopathy (CM) fibrosis replaces large segments of myocardium, but in idiopathic congestive CM the myocardium contains only small foci of fibrosis or is morphologically normal. As coronary disease and myocardial infarction may be clinically silent, it is not always possible to distinguish ischemic from idiopathic congestive CM during life without cardiac catheterization. To det...
Introduction Composite pheochromocytoma is a rare tumor, occurring in only 3% of pheochromocytomas. We report case composite with neurofibromatosis type 1. Case presentation A 42-year-old man was referred to our department for further evaluation an incidentally detected right adrenal tumor. He patient at another hospital The serum and urinary catecholamine levels exceeded the normal range. Abdo...
background: technetium-99m radioisotope is the backbone of any nuclear medicine institute. this radioisotope is acquired by the elution of molybdenum-99/technetium-99m generator which emits 141 kev gamma ray and having 6.04 hour half-life. occasionally the contents of molybdenum-99 may mix up with elute, which may affect image quality and patients may receive higher doses than recommended. this...
Nuclear imaging techniques, including primarily positron emission tomography (PET) and single-photon emission computed tomography (SPECT), can provide quantitative information for a biological event in vivo with ultra-high sensitivity, however, the comparatively low spatial resolution is their major limitation in clinical application. By convergence of nuclear imaging with other imaging modalit...
STUDY OBJECTIVES To assess the effectiveness of pulse oximetry and radioisotope measurement of right-to-left (R-L) shunt for the early detection of pulmonary arteriovenous malformations (PAVMs) in patients with hereditary hemorrhagic telangiectasia (HHT). DESIGN Patients with HHT had serial measurements of the following: (1) arterial oxygen saturation (SaO2) by pulse oximetry in erect and sup...
The accurate detection of disease-related biomarkers is crucial for the early diagnosis and management of disease in personalized medicine. Here, we present a molecular imaging of human epidermal growth factor receptor (EGFR)-expressing malignant tumors using an EGFR-specific repebody composed of leucine-rich repeat (LRR) modules. The repebody was labeled with either a fluorescent dye or radioi...
BACKGROUND Applications for sentinel node biopsy (SNB) in the head and neck are increasing with new lymphatic tracers and imaging techniques allowing previously inaccessible tumor sites to benefit from the procedure. We show that lymphatic drainage from a primary parotid malignancy can be accurately mapped using navigational surgery. METHODS A patient with radiologically classified N0 intrapa...
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