Noncontrast MRA of Distal Lower Extremities Using Flow-Sensitized Dephasing Prepared SSFP
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چکیده
Fig. 3. FSD gradient strength has significant effect on arterial SNR and image quality score, and also substantial effect on artery-vein CNR (p-value shown in each panel). All five gradient strengths were able to generate MRA images with satisfactory diagnostic quality. G=10mT/m resulted in the highest SNR, CNR, and image score (* indicates significant difference from other groups using paired t-test. Significant level) was set at 0.05). Fig. 2. MIP MRA. As the FSD gradient increased, more branch arteries are depicted, but more veins appeared as well (arrows). Noncontrast MRA of Distal Lower Extremities Using Flow-Sensitized Dephasing Prepared SSFP
منابع مشابه
Flow-Sensitized Dephasing Prepared SSFP: A New Noncontrast MRA Technique
Fig. 5. MIP MRA of hands. m1 = 98 mT۠ms/m. Fig. 6. MIP MRA of feet with 3D reformati on. m1= 292 mT۠ms/ m. Fig. 7. MIP MRA of carotids. m1= 28 mT۠ms /m. Fig. 4. MIP of three-station MRA of lower extremities. Major arterial banches are depicted. Minor venous signal are observed in the thigh. Signal loss at pelvis is most likely due to respiratory motion and bowel peristalsis. m1=17-52 mT۠ms/m. Flow-...
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