If the inside sphere volume measured from the 3D image acquisition differs from the absolute volume by more than 5%, a repeat exam will be requested at the earliest opportunity. If the inside length of the phantom measured from the 3D image acquisition differs from the absolute length by more than 1% (of 125 = 1.25mm), a repeat exam will be requested at the earliest opportunity. The T2 values of the solutions contained within the phantom will be calculated from the images. If the calculated values vary from the known values by more than 5 ms, a repeat exam will be requested at the earliest opportunity. If the system fails a repeat exam, the site will be instructed to call Siemens service. 5.4.2 Body Coil S/N and Calc Artifacts Tests These tests use the Siemens Body Loader and Spherical Phantom (D240). Refer to the instructions in the Siemens Syngo MR Software, Options, Customer QA menu. Position body loader on the patient table. Note: this will likely require the assistance of a second person. Position the spherical phantom in its holder and insert the assembly into the body loader. Ensure that the arrow on the phantom holder is pointing toward the magnet bore. Align loader and phantom with the laser crosshairs. Select Options, Customer QA from the operating menu. Select the coil from the Active Coil selection list. Select the Body S/N DIP checkbox. Select the Calc Artifacts checkbox. Click on the Start button. Decision Tree for Body Coil S/N and Calc Artifacts Tests: If the system fails any one of the tests, check the positions of the phantoms (refer to Customer QA menu instructions) and repeat the exam. If the system fails a second time, reboot the system with the head coil and SNR phantom in position, let the phantom settle for 3-5 minutes, run Head Coil S/N DIP (Customer QA Menu), and record on the SNR log sheet. If the Head S/N passes, then re-run the body coil tests. If the system fails the Head S/N test, try once again. If the Head S/N continues to fail, call Siemens Service. If the system continues to fail Body S/N two attempts and after passing the Head S/N, contact Siemens Service.
If the inside sphere volume measured from the 3D image acquisition differs from the absolute volume by more than 5%, a repeat exam will be requested at the earliest opportunity. If the inside length of the phantom measured from the 3D image acquisition differs from the absolute length by more than 1% (of 125 = 1.25mm), a repeat exam will be requested at the earliest opportunity. The T2 values of the solutions contained within the phantom will be calculated from the images. If the calculated values vary from the known values by more than 5 ms, a repeat exam will be requested at the earliest opportunity. If the system fails a repeat exam, the site will be instructed to call Siemens service. 5.4.2 Body Coil S/N and Calc Artifacts Tests These tests use the Siemens Body Loader and Spherical Phantom (D240). Refer to the instructions in the Siemens Syngo MR Software, Options, Customer QA menu. Position body loader on the patient table. Note: this will likely require the assistance of a second person. Position the spherical phantom in its holder and insert the assembly into the body loader. Ensure that the arrow on the phantom holder is pointing toward the magnet bore. Align loader and phantom with the laser crosshairs. Select Options, Customer QA from the operating menu. Select the coil from the Active Coil selection list. Select the Body S/N DIP checkbox. Select the Calc Artifacts checkbox. Click on the Start button. Decision Tree for Body Coil S/N and Calc Artifacts Tests: If the system fails any one of the tests, check the positions of the phantoms (refer to Customer QA menu instructions) and repeat the exam. If the system fails a second time, reboot the system with the head coil and SNR phantom in position, let the phantom settle for 3-5 minutes, run Head Coil S/N DIP (Customer QA Menu), and record on the SNR log sheet. If the Head S/N passes, then re-run the body coil tests. If the system fails the Head S/N test, try once again. If the Head S/N continues to fail, call Siemens Service. If the system continues to fail Body S/N two attempts and after passing the Head S/N, contact Siemens Service.
MRI_Manual%20Web_06May2013.docx