evidence based medicine (ebm) is a new approach to patient management which incorporates best evidence with the clinical expertise of the health care providers. although this approach has had a rapid growth in many clinical disciplines, its applications in radiology and nuclear medicine has not been addressed sufficiently. in this review ebm is briefly explained and the first two steps of the e...

evaluation of gastric emptying rate using nuclear scintigraphy as the gold standard method has been studied in various animals, but there is no report in suckling lambs. the aim of this study was to develop a nuclear scintigraphic method to visualize and measure abomasal emptying rate by estimation of scintigraphic half emptying time (t1/2) in the live neonatal lamb. five healthy, female irania...

background: obtaining high quality images in single photon emission tomography (spect) device  is the most important goal in nuclear medicine. because if image quality is low, the possibility of making a mistake in diagnosing and treating the patient will rise. studying effective factors in spatial resolution of imaging systems is thus deemed to be vital. one of the most important factors in sp...

we reported a 14 months old boy referred for evaluation of chylous ascites to our nuclear medicine department. tc-99m phytate was injected subcutaneously in his calves and whole body images as well as abdominal spect were performed. the spect images could localize an area of several intestinal lymphangiomata in the abdominal region. the abnormal region was surgically resected and the patient as...

We reported a 14 months old boy referred for evaluation of chylous ascites to our nuclear medicine department. Tc-99m Phytate was injected subcutaneously in his calves and whole body images as well as abdominal SPECT were performed. The SPECT images could localize an area of several intestinal lymphangiomata in the abdominal region. The abnormal region was surgically resected and the patient as...

Introduction: Filtering can greatly affect the quality of clinical images. Determining the best filter and the proper degree of smoothing can help to ensure the most accurate diagnosis. Methods: Forty five patient’s data aquired during brain phantom SPECT studies were reconstructed using filtered back-projection technique. The ramp, Shepp-Logan, Cosine, Hamming, Hanning, Butterworth, Metz...

Evaluation of gastric emptying rate using nuclear scintigraphy as the gold standard method has been studied in various animals, but there is no report in suckling lambs. The aim of this study was to develop a nuclear scintigraphic method to visualize and measure abomasal emptying rate by estimation of scintigraphic half emptying time (T1/2) in the live neonatal lamb. Five healthy, female Irania...

introduction: an efficient method of tomographic imaging in nuclear medicine is positron emission tomography (pet). compared to spect, pet has the advantages of higher levels of sensitivity, spatial resolution and more accurate quantification. however, high noise levels in the image limit its diagnostic utility. noise removal in nuclear medicine is traditionally based on fourier decomposition o...

pet (positron emission tomography) is a powerful imaging technique that can provide quantitative information on the distribution of positron emitter labeled radiopharmaceuticals (pet radiopharmaceuticals) in the body. positrons (ß+) are positively charged beta particles. they are emitted when the atom is proton rich. a positron has only a transient existence. after losing all of its kinetic ene...

bangladesh is one of the smaller states in asia. but it has a long and rich history of nuclear medicine for over sixty years. the progress in science and technology is always challenging in a developing country. in 1958, work for the first nuclear medicine facility was commenced in dhaka in a tin-shed known as ‘radioisotope centre’ and was officially inaugurated in 1962. since the late 50s of t...