KAJIAN PENGARUH VARIASI BERAT BADAN TERHADAP NILAI SPECIFIC ABSORPTION RATE (SAR) DAN SUHU TUBUH PADA PEMERIKSAAN MRI

STUDY THE EFFECT OF BODY VARIATION ON SPECIFIC ABSORPTION RATE (SAR) VALUE AND BODY TEMPERATURE IN MRI EXAMINATIONNurul Auliyaa Hasbi 1), Dwi Rochmayanti 2), Ary Kurniawati 3)ABSTRACTBody weight number will determine the amount of Radio Frequency (RF) in the increase in the Specific Absorption Rate (SAR) value, but this increase will be different from each MRI modality used. In addition, based on the author's preliminary study at the hospital, he saw that the patient's complaints, such as feeling the heat and excessive sweating in his body, caused the patient to move, causing motion artifacts. Examination time is long on MRI examination, causing many RF pulses to experience generation. The aim of the study was to determine the effect of weight variations on SAR values and body temperature on MRI examinations.This type of research uses a systematic literature review or Literature Review with a qualitative approach with the inclusion criteria of journal publications with the last 10 years and journals that discuss the effect of body weight on SAR values and changes in body temperature on MRI, as well as journals using retrospective data as clinical studies and Quasi experimental using patients or phantoms and data processing was done by tabulating journals and the data were analyzed descriptively and synthesized the research results.Literature study shows the results of weight gain can affect the increase in SAR value because the heavier the object, the greater the amplitude of the RF emitted, causing heating in the network causing the SAR value to increase. And an increase in body temperature can affect the increase in SAR value because RF absorption will interact with the body's water molecules to increase the movement equivalent to an increase in energy which will increase body temperature, due to tissue heating. In conclusion, there is an effect of weight variation on the SAR value, and there is an effect of weight variation on the increase in body temperature, and there is an effect on body temperature on the SAR value.Keywords : Body weight, Specific Absorption Rate (SAR), body temperature, MRI examination.1) Student of D-IV Radiology Technologist Health Polytechnic of Ministry Health of Semarang. 2)3) Lecturer Major of Radiodiagnostic and Radiotherapy Health Polytechnic of Ministry Health of Semarang