Bamdar Alanazi

Department of Radiology, King Fahad Medical City, Riyadh, Saudi Arabia


  • Research Article   
    Patient Dosimetry in SPECT/CT Lymphoscintigraphy Examinations
    Author(s): Abdullah Almujally*, Abdelmoneim Sulieman, Hassan Salah, Bamdar Alanazi and Fabrizio Calliada

    Background: Lymphoscintigraphy imaging procedure is performed at the nuclear medicine department to evaluate sentinel lymph nodes for excisional biopsy in patients with melanoma, and to assess the use of the intraoperative gamma probe in the operating room. The objective of this study is to evaluate the radiation dose of patients during lymphoscintigraphy SPECT/CT procedure and to estimate its radiogenic risk. Methods: Of the thirty patients that underwent SPECT/CT in this research, 63.3 % (19 patients) and 36.7 % (11 patients) were females and males, respectively. For SPECT/CT [GE Hualun Medical Systems (Discovery NM/CT 670Pro)]. Results: The effective dose (mSv) per procedure ranges from 0.21 to 0.5 mSv, with an average dose value of 0.22 mSv. The effective dose for CT examination is 0.05 (ranging from 0.04 to 0.1 mSv per procedure). Therefore, the effective dose for CT is lower tha.. Read More»

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