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H3, h6: siemens healthineers completed a detailed investigation of the reported event.On (b)(6) 2025, siemens healthineers received pictures of the injury that were taken one week after the examination.Our medical officer assessed these pictures and confirmed the previous assessment of the burn as grade 2b or higher.Our experts analyzed the images generated during the patient¿s examination.The complete examination of the patient¿s hip lasted 23.2 min with an active scanning time of 19.2 min.No abnormality was found, which would indicate a system malfunction.The complete measurement was performed in the normal operating mode.The sar values were within the limits defined by the mr safety standard (iec 60601-2-33), i.E.The maximum applied sar was 87.8 % of the normal mode limit.The applied rf in this case should not represent a risk under normal circumstances and scan conditions.Furthermore, the patient absorbed 24.2 wmin/kg which is clearly below the limit of 240 wmin/kg defined in the mr safety standard (iec 60601-2-33).The system and used rf coils were checked by our service engineer and found to be in specification.In summary, no hardware or software problem was found, which would explain the patient¿s injury.The root cause is most likely contact between the legs, which can be seen in the mr images of the examination.Furthermore, it was stated in the questionnaire that the patient was wearing only underwear and that no distance cushions were used.The formation of rf current loops based on skin-skin contact can lead to increased local heating and more injuries at the points of contact and should be avoided by using distance cushions.This effect and the preventive measures are described in the magnetom family operator manual ¿ mr system and coils syngo mr xa51.The customer was informed by siemens healthineers to please always follow the instructions given in the operator manual, regarding correct patient positioning to avoid such incidents in the future.- always position the patient so that the patient¿s arms are aligned with the torso and ensure that hands, arms, and legs do not touch (minimum distance: 5 mm).- ensure that the minimum distance of 5 mm is maintained between patient and tunnel covering.- to ensure distance, use positioning aids, e.G., blankets made of linen, cotton, or paper, or dry material that is permeable to air.The system manual (mr system and coils | operator manual states, that patients should wear light clothing and that patients should be instructed to press the squeeze ball in case of unusually strong sensation of heat.With the help of a technician, it was possible to recreate the situation at the time.No malfunction of the system could be detected.
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