comparing the absorbed dose of 99mtc-diethylenetramine penta acetic acid and 99mtc- ethylene decysteine radiopharmaceuticals using mird dosimetry
نویسندگان
چکیده
the aim of this study was the investigation of absorbed dose to the kidneys, spleen, and liver during technetium-99 m ethylene dicysteine and technetium-99 m diethylenetriaminepentaacetic acid (99mtc-ec and 99mtc-dtpa) kidney scan. patients who had been prepared for the kidney scan, were divided into two groups (groups 1 and 2). the first group (group 1) and the second group (group 2) received intravenous injection of 99mtc-ec and 99mtc-dtp, respectively. a certain amount of radiopharmaceuticals was injected into each patient and was immediately imaged with dual-head gamma camera to calculate the activity through the conjugated view method. then, the doses of kidney, liver, and spleen were measured using medical internal radiation dosimetry method. finally, absorbed dose of these organs was compared. based on these different results (p < 0.05), organs absorbed dose was significantly less with radiopharmaceutical 99mtc-ec as compared with 99mtc-dtpa
منابع مشابه
Comparison of the Absorbed Dose for 99mTc-Diethylenetriaminepentaacetic Acid and 99mTc-Ethylenedicysteine Radiopharmaceuticals using Medical Internal Radiation Dosimetry
The aim of this study was the investigation of absorbed dose to the kidneys, spleen, and liver during technetium-99 m ethylene dicysteine and technetium-99 m diethylenetriaminepentaacetic acid ((99m)Tc-EC and (99m)Tc-DTPA) kidney scan. Patients who had been prepared for the kidney scan, were divided into two groups (Groups 1 and 2). The first group (Group 1) and the second group (Group 2) recei...
متن کاملاندازهگیری دوز جذبی کلیهها، کبد، مثانه و تخمدان در آزمایش سنتی گرافی کلیه با رادیو داروهای 99mTc-EC و 99mTc-DTPA با استفاده از فنتوم به روش دوزیمتری ترمولومینسانس
Background: In this survey the absorbed dose by kidneys, bladder, liver and ovaries with 99mTc-EC (99mTc Ethylene dicysteine) renal scintigraphy was measured and compared with the absorbed dose from 99mTc-DTPA (99mTc - Dietheylne Triamine Penta-Acid), which often is used in renal scintigraphy.Methods: In this applicable study, we used a water phantom with geometrical sizes similar to that o...
متن کاملRecent advances in 99mTc radiopharmaceuticals.
99mTc radiopharmaceuticals play an important role in widespread applications of nuclear medicine. When 99mTc radiopharmaceuticals first came into use, major efforts were directed toward the development of 99mTc radiopharmaceuticals for bone imaging and for the excretory functions of the liver and kidneys. In the past 20 years, a significant advance has been made in technetium chemistry, which p...
متن کاملEstimating the Absorbed Dose of Organs in Pediatric Imaging of 99mTc-DTPA Radiopharmaceutical using MIRDOSE Software
Introduction: In this study, organ radiation doses were calculated for the renal agent 99mTc-DTPA in children. Bio-kinetic energy of 99mTc-DTPA was evaluated by scintigraphy and estimates for absorbed radiation dose were provided using standard medical internal radiation dosimetry (MIRD) techniques.Material and Methods: In this applied research, fourteen children patients (6 males and 8 females...
متن کاملdiethylenetriamine penta-acetic acid
The chelating agent diethylenetriamine penta-acetic acid was used to measure iron stores in 83 patients with chronic liver disease. Iron chelation was normal in patients with chronic cholestasis. Chelation was increased above the control range in 14 out of 26 patients with alcoholic cirrhosis, in nine out of 28 patients with non-alcoholiccirrhosis, and in 11 out of 15 cirrhotics with a portacav...
متن کاملAbsorbed dose to water reference dosimetry using solid phantoms in the context of absorbed-dose protocols.
For reasons of phantom material reproducibility, the absorbed dose protocols of the American Association of Physicists in Medicine (AAPM) (TG-51) and the International Atomic Energy Agency (IAEA) (TRS-398) have made the use of liquid water as a phantom material for reference dosimetry mandatory. In this work we provide a formal framework for the measurement of absorbed dose to water using ioniz...
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عنوان ژورنال:
journal of medical signals and sensorsجلد ۵، شماره ۳، صفحات ۱۶۲-۰
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