Pavel Solny
ScientificTracks Abstracts-Workshop: J Nucl Med Radiat Ther
The aim of this pilot study was to investigate and verify the possibilities of dosimetry for patients undergoing first Radioiodine therapy (RAIT) using a small single head mobile gamma camera. Methods: Camera Solo mobile was used for the measurement of 131I accumulation in remnants of patientsâ?? thyroids and 131I accumulating nods (neck region). Vials with a known activity of 131I were used to calibrate the system. The patient-volunteers were around 3 months after thyreoablation due to thyroid carcinoma. The weight of the accumulating remnants or nods was established using ultrasound or roughly estimated using phantom measurements. Two types of collimators - MEGP (medium energy general purpose) and HEGP (high energy general purpose) were tested. Seven patients were examined using the MEGP collimator; HEGP was used for the five patients. Results: The absorbed doses within remnants or nodes vary from 40 Gy up to 800 Gy with an uncertainty from 25% up to 50% depending mainly on the mass of the remnants estimation. Based on the measurements the administered therapeutic activity is considered to be sufficient for most of the patients, a consequent follow-up is done. So far 10 patients were examined again. Three of them were treated again and seven of them are in remission. Conclusions: The dose assessment uncertainty could be significantly reduced by processes optimization. Based on the results appropriate grant for further investigation will be sought out.
Pavel SolnĂ˝ has completed his Master degree studies (Ing.) at the age of 25 years at FNSPE CTU and now is studying for PhD degree. He is also working as a Medical physicist at DNME. He is interested in problematics dealing with Targeted Radionuclide Therapy Dosimetry in clinic conditions.
Nuclear Medicine & Radiation Therapy received 706 citations as per Google Scholar report
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