Fourteen children with various seizure disorders were studied using a cerebral blood flow tracer, 123I iodoamphetamine (0.05 mCi/kg), and single photon emission computed tomography (SPECT). In the five patients with radiological lesions, SPECT showed congruent or more extensive abnormalities. Five of the nine children with a normal scan on computed tomography had abnormal SPECT studies consisti...

The extent of abnormally perfused myocardium was compared in patients with and without chest pain during treadmill exercise from a large, relatively low-risk consecutive patient population (n=356) referred for quantitative thallium-201 single-photon emission computed tomography (SPECT). All patients had concurrent coronary angiography. Patients were excluded if they had prior coronary angioplas...

[TOP] Dopamine transporter imaging with single photon emission computed tomography (DAT-SPECT) is investigational for all indications, including but not limited to:  Aiding in the diagnosis of patients with clinically uncertain parkinsonian syndromes; OR  Distinguishing between parkinsonian syndromes and essential tremor; OR  Distinguishing between dementia with Lewy bodies and Alzheimer dis...

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OBJECTIVES Functional cerebral imaging PET and SPECT have shown hypometabolism and hypoperfusion in the area of vascular malformation in children with epilepsy due to Sturge-Weber syndrome. However, data are scarce in infants and do not exist in patients with Sturge-Weber disease without epilepsy. The pattern of perfusion during the first two years of life was studied including patients before ...

Molecular imaging with ictal single photon emission computed tomography (SPECT) is an established functional imaging modality for the presurgical evaluation of patients with refractory partial onset seizures. SPECT coregistered on to the MRI has greater sensitivity to identify the ictal onset zone. Ictal SPECT should always be interpreted in the context of other presurgical investigations. Icta...

INTRODUCTION Parathyroid crisis due to ectopic parathyroid adenomas can pose diagnostic and management challenges, since it is quite rare in clinical practice. CLINICAL FINDINGS/PATIENT CONCERNS A 67-year-old Chinese male presented as a parathyroid crisis due to an ectopic mediastinal parathyroid adenoma with his serum calcium and PTH markedly increased in short time. An ultrasonography and c...

BACKGROUND The Kii peninsula of Japan, together with Guam and West New Guinea, has one of the highest incidences of amyotrophic lateral sclerosis (ALS) and parkinsonism-dementia complex (PDC) in the world. OBJECTIVE To perform neuroimaging studies on patients with ALS and PDC on the Kii peninsula. METHODS Results of computed tomography, magnetic resonance imaging, and single-photon emission...

The accurate evaluation of a tumor’s stage is one of the most important steps for successful treatment. Radionuclide imaging, now widely used, is useful because it may reflect not only morphological characteristics but also metabolic activities. Conventional imaging techniques can provide anatomical information, necessary for the accurate detection and localization of structural and morphologic...