PERBEDAAN INFORMASI CITRA ANATOMI MRI VERTEBRAE THORACAL POTONGAN AXIAL DAN SAGITAL T2 FAST SPIN ECHO DENGAN DAN TANPA PULSA GATING

Background : MRI examination vertebrae thoracic consists of pieces of axial, sagittal and coronal both T1 SE / FSE or GRE T2 * and T2 SE / FSE or GRE T2 * to assess abnormalities in the intervertebral discs, the compression of the vertebrae thoracic, visualizing the spinal cord and cerebro spinal fluid ( CSF) and disorder. Problems often arise that a disturbance in the image artifacts caused by respiration, the peristaltic movements in the surrounding organs, blood vessels, heart rate and movement of the patient. This can be overcome by using a pulse gating / Peripheral gating (gating Pe). The purpose of this study to determine the difference image information anatomical MRI vertebrae thoracic pieces of axial and sagittal T2 Fast Spin Echo with and without a pulse gating as well as to know the techniques best between MRI vertebrae thoracic pieces of axial and sagittal T2 Fast Spin Echo with pulse gating and without a pulse gating.Method : This type of research is quantitative research with experimental approaches. The study was conducted with a 0.3 Tesla MRI plane Radiology at Bethesda Hospital in Yogyakarta. MRI image data in the form 8 axial and sagittal thoracic pieces with samples of 8 people and 2 variations. Rate anatomical image information carried by three specialist radiology by giving a value of 1 to 3 on the questionnaire provided. Data was analyzed by Wilcoxon test for differences in anatomy and mean rank image to select the best technique.Result : The results showed on the disc, the spinal cord and the ligament flavum on MRI anatomical image of the thoracic vertebrae T2 axial piece Fast Spin Echo with and without a pulse gating pulse gating no difference. Differences seen in the aorta thoracalis and their artifacts. In the sagittal cuts on the corpus, the discus, the spinal cord and the ligament flavum no visible difference. Just found a difference in the test artifacts. Techniques to get the image of the anatomy of the best MRI vertebrae thoracic pieces of axial and sagittal T2 Fast Spin Echo suggested using pulse gating because of the test results Mean Rank obtained positive values rank 3 on the test artifact pieces of axial and positive value of rank 4 on pieces of sagittal this shows using imagery obtained gating pulse anatomy better compared to not using gating pulse.Conclusion: to produce a good image information anatomical MRI thoracic vertebrae T2 fast spin echo at 0.3 tesla should use gating pulse