Abstract Pretreated silica sand labeling using varying concentrations of tin(II) fluoride and chloride as reducing agents different times was performed in order to develop a methodology for with 99m Tc solid radiotracer. Influence pretreatment parameters on the sorption yield (R ret% ) statistically evaluated. The effectiveness methods used reduce pertechnetate ( TcO 4 − by ascending paper chro...

OBJECTIVE Gastrointestinal motility and functional motility disorders causing either delayed or accelerated gastric emptying (GE) may result in similar symptoms including nausea, vomiting, early satiety, fullness, bloating, and abdominal discomfort or pain. Hence, it is important to evaluate patients for both rapid and delayed GE in the same test. The gold standard technique to measure GE is sc...

PURPOSE The purpose of this study was to investigate whether the findings of Tc-99m pertechnetate salivary gland scintigraphy (SGS) can predict the outcome of sialoendoscopic intervention in patients with obstructive submaxillaritis. MATERIALS AND METHODS Eleven patients with obstructive submaxillaritis were prospectively recruited. All patients underwent sialoendoscopy. Tc-99m pertechnetate ...

UNLABELLED This study assesses the effectiveness of using everyday cleaning agents for the radioactive decontamination of wet (99m)Tc-pertechnetate spills in the nuclear medicine department. METHODS Six cleaning agents (water, water and soap, alcohol, bleach, a commercial glass cleaner, and a commercial decontaminating agent) were analyzed for decontamination effectiveness for a wide range of...

We analyze the case of a patient with intermittent episodes of lower gastrointestinal bleeding and suspected Meckel's diverticulum, whose presence was confirmed by (99m)Tc-pertechnetate scintigraphy. A previous exploratory laparotomy had been performed without finding the diverticulum. In spite of years of medical treatment, the patient presented a new episode of lower gastrointestinal bleeding...

Drugs and surgery can interfere with the biodistribution of radiopharmaceuticals and data about the effect of splenectomy on the metabolism of phytate-Tc-99m are scarce. This study aimed at evaluating the interference of splenectomy on phytate-Tc-99m biodistribution and liver function in rats. The SP group rats (n=6) underwent splenectomy. In group C (control) the animals were not operated on. ...

Radionuclide Tc99m DTPA (Diethylenetriaminepenta Acetic Acid) renal imaging is being used to assist in the evaluation of overall GFR, the intra-renal transit time, the cortical transit time, response to frusimide injection, diagnosis of ATN and rejection in renal transplant cases. A study was conducted at PINSTECH in order to prepare DTPA kit locally and evaluate the labeling efficiency as well...

  Introduction: Bombesin (BN), a 14-amino acid neuropeptide, shows high affinity for the human GRP (gastrin releasing peptide) receptors, which are overexpressed by a variety of cancers, including prostate, breast, pancreas, gastrointestinal, and small cell lung cancer. Aim was to prepare [6-hydrazinopyridine-3-carboxylic acid (HYNIC0), D-Tyr6, D...

This multicenter study aimed to determine the reproducibility of quantitative SPECT images reconstructed using a commercially available method ordered-subset conjugate-gradient minimization. Methods: A common cylindric phantom containing 100 kBq/mL concentration 99mTc-pertechnetate solution in volume 7 L was scanned under standard imaging conditions at 6 institutions local cli...

a 13 years old boy with severe abdominal pain and history of intermittent (ii bleeding since the aye of 3 months, is presented. different diagnostic procedures were unremarkable. a tc-99m pertechnetate abdominal study revealed abnormal radionuclide accumulation in small bowel region. duplication of small bowel was suspected which was confirmed by surgery and pathologic examination.