BACKGROUND Despite enormous progress in gene therapy for breast cancer, an optimal systemic vehicle for delivering gene products to the target tissue is still lacking. The purpose of this study was to determine whether AC133+ progenitor cells (APC) can be used as both gene delivery vehicles and cellular probes for magnetic resonance imaging (MRI). In this study, we used superparamagentic iron o...

OBJECTIVES Multidrug resistance (MDR), which may be due to the over expression of P-glycoprotein (Pgp) and/or MRP, is a major problem in neoadjuvant chemotherapy of osteosarcoma. The aim of this study was to investigate the role of Tc-99m MIBI scan for predicting the response to pre-operative chemotherapy. METHODS Twenty-five patients (12 males and 13 females, aged between 8 and 52y) with ost...

INTRODUCTION. Urinary tract infection is the most common serious bacterial infection in children. The aim of this study was to compare the value of different laboratory and imaging techniques in detecting renal involvement in acute pyelonephritis. MATERIALS AND METHODS. In a cross-sectional study of patients 1 month to 14 years of age diagnosed with urinary tract infection were examined with sy...

Urinary tract infections are common in children. The available gold standard method for diagnosis, Tc-99m dimercaptosuccinic acid scan is expensive and exposes patients to considerable amount of radiation. This study was performed to compare and assess the efficacy of Power Doppler Ultrasound versus Tc-99m DMSA scan for diagnosis of acute pyelonephritis. A quasi experimental study was conducted...

A rare case of diaphragm hernia containing an accessory spleen and great omentum is reported. Tc-99m phytate SPECT showed tracer accumulation in the accessory spleen and was useful in the evaluation of the disease.

OBJECTIVE The purpose of this study was to compare the usefulness of gallium-67 citrate (67Ga) and technetium-99m tetrofosmin (Tc-TF) scan to detect Hodgkin's disease (HD). METHODS In this study, 24 patients with HD underwent 67Ga and Tc-TF scan before receiving any therapy. RESULTS 67Ga scan could detect HD in all 24 (100%) patients. Tc-TF scan could detect HD in 22/24 (91.6%) patients, bu...

during the 6-m period, 24 patients with acute scrotal pain were referred to the nuclear medicine department of shaheed labbafi-nejad hospital. their age ranged from 9 to 84 (mean 28.8) years. twelve scans were selected for the study. the scans were performed on angiographic and static phases, using tc-pertechnetate. of the above mentioned cases, one had acute testicular torsion (pre and post op...

(CS) and without (C) are shown. The numbers indicate those studies in which there was agreement in diagnosis. The table also shows the relationship of these three techniques to the final diagnosis (FD) made for the patient in each case. The final diagnosis made use of other information such as additional perfusion views, chest radiographs, and patient examination. Film (F) relates best to final...

Primary hyperparathyroidism occurs as a result of isolated parathyroid adenoma in 80% to 85% of all cases. A (99m)technetium ((99m)Tc) sestamibi scan or neck ultrasonography is used to localize the neoplasm prior to surgical intervention. A 53-year-old female was referred for the exclusion of metabolic bone disease. She presented with low back pain that had persisted for the past 6 months and e...