Learn More
BACKGROUND Subtraction of ictal and interictal single photon emission computed tomography (SPECT) images is known to be successful in localizing the seizure focus in the pre-surgical evaluation of patients with partial epilepsy. A computer-aided methods for producing subtraction ictal SPECT co-registered to the magnetic resonance image (MRI) (the SISCOM(More)
Periodic lateralized epileptiform discharges (PLEDs), which are known as unusual electroencephalogram (EEG) patterns, are described in a patient who had stroke and seizures. This patient underwent Tc-99m HMPAO (hexamethyl propylene amine oxime) brain single photon emission computed tomography (SPECT) imaging both during PLEDs on EEG and after the cessation(More)
GRID2 is a member of the ionotropic glutamate receptor family of excitatory neurotransmitter receptors. GRID2 encodes the glutamate receptor subunit delta-2, selectively expressed in cerebellar Purkinje cells. The phenotype associated with loss of GRID2 function was described only in mice until now, characterized by different degrees of cerebellar ataxia(More)
OBJECTIVE In this study we hypothesized that if timing of gamma probe-guided parathyroidectomy were individualized according to an optimal-time-to-surgery technique, in vivo characterization of parathyroid lesions would be possible. We compared our findings with an ex vivo counting method ("20% rule") and frozen section results. STUDY DESIGN AND SETTINGS(More)
Thyroid scintigraphy using Tc-99m pertechnetate is a frequently performed procedure in routine nuclear medicine practice. The indications for thyroid scintigraphy are investigation of hyperthyroidism, nodularity of the gland, cause of thyroid stimulating hormone elevation and localization of an ectopic thyroid gland. In the pediatric population, the most(More)
Since its release for routine clinical use, (99m)Tc-mercaptoacetyltriglycine (MAG3) has become an important alternative to (131)I-labeled orthoiodohippuran. The cold kit for MAG3 is expensive, especially in developing countries. Therefore, unique storage conditions should be provided for cost reduction. Cold fractioning is a well-known procedure but has(More)
Termination of pregnancy (ToP) raises ethical dilemmas. Although ToP for fetal disorders is commonly approved by health professionals, their opinions and attitudes are influenced by a diversity of cultural contexts. The aim of the study is to investigate Turkish physicians' opinions on ToP for fetal disease and the hypothesis is that their opinions are(More)
OBJECTIVE To investigate the impact of risk factors in the diagnosis of pulmonary thromboembolism. METHODS This was a retrospective study of 295 patients with suspicion of pulmonary embolism (PE), of whom 154 were referred from outpatient and 141 from inpatient departments for a period of 24 months (2000-2001) in Hacettepe University Hospital in Ankara.(More)
PURPOSE Radionuclide renography with angiotensin converting enzyme (ACE) inhibition plays an important role in the diagnosis of haemodynamically significant renal artery stenosis. Angiotensin receptor antagonists inhibit the renin angiotensin system at different levels from ACE inhibitors by selectively blocking the binding of angiotensin II to AT1(More)
I-131 MIBG scintigraphy is routinely used in the diagnosis of neuroendocrine tumours with high specificity. The radiopharmaceutical is taken up via uptake mechanism and actively transported into storage vesicules. The organs with dense sympathetic innervation such as salivary glands, heart, lachrymal glands, spleen and rarely adrenal medulla are normally(More)