نتایج جستجو برای: 99mtc hmpao
تعداد نتایج: 4981 فیلتر نتایج به سال:
UNLABELLED Cryptogenic stroke might relate to paradoxical embolism stemming from right-to-left shunt caused by patent foramen ovale (PFO). We performed radionuclide venography using the Valsalva maneuver, followed by (99m)Tc-macroaggregated albumin (MAA) brain SPECT to investigate the fate of emboli originating from the lower extremities. METHODS Ten patients (9 men, 1 woman; mean age, 61 +/-...
BACKGROUND Hereditary Coproporphyria (HCP) is characterized by abdominal pain, neurologic symptoms and psychiatric disorders, even if it might remain asymptomatic. The pathophysiology of both neurologic and psychiatric symptoms is not fully understood. Therefore, aiming to evaluate a possible role of brain blood flow disorders, we have retrospectively investigated cerebral perfusion patterns in...
OBJECTIVE The aim of this study was to compare the renal function measured with either 99mTc-DTPA or 99mTc-EC dynamic scintigraphies with that measured using 99mTc-DMSA static scintigraphy. METHODS the values of relative renal function measured in 111 renal dynamic scintigraphies performed either with 99mTc-DTPA (55 studies) or with 99mTc-EC (56 studies) were compared with the relative functi...
PURPOSE To establish whether regional disturbances of the benzodiazepine receptor distribution in focal epilepsies can be detected by SPECT using 123-I-Iomazenil. PATIENTS AND METHODS Benzodiazepine receptor imaging was carried out in 10 patients interictally. To be eligible for this study the patients had to have a history of focal seizures and no evidence of routine imaging abnormalities as...
Left hemiconvulsions occurred in a 13-month-old girl with Hemophilus influenzae (H. influenzae) central nervous system (CNS) infection. Tc-99m HMPAO brain SPECT showed a focal hyperperfusion area in the right frontal lobe. The patient recovered without complications, and follow-up SPECT revealed markedly improved findings. Tc-99m HMPAO brain SPECT is useful for evaluating focal convulsions asso...
INTRODUCTION L,L-ethylenedicysteine (EC) is a new carrier of technetium Tc 99m (99mTc) with a lower affinity to plasma albumin in comparison with diethylenetriamine pentaacetic acid (DTPA). We compared 99mTc-EC scan with 99mTc-DTPA scan in diuretic renography for patients with obstructive uropathy. MATERIALS AND METHODS Thirty-three patients with upper urinary tract obstruction were randomly ...
OBJECTIVES The aim of this study was to investigate the diagnostic performance of (99m)Tc-hexamethypropylene amine oxime labeled autologous white blood cell ((99m)Tc-HMPAO-WBC) scintigraphy in patients with suspected infections associated with cardiovascular implantable electronic devices (CIEDs). BACKGROUND Early, definite recognition of CIED-related infections combined with accurate localiz...
UNLABELLED Our objective in this study was to evaluate whether measurement of quantitative uptake of (99m)Tc-methylene diphosphate (MDP) and (99m)Tc-hexamethylpropyleneamine oxime (HMPAO) white blood cells (WBCs) is useful in detecting osteomyelitis in peripheral bony lesions. METHODS Twenty-four patients (12 men and 12 women; age range, 25-72 y) were referred for imaging because of clinicall...
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