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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Magn Reson Imaging. 2012 Aug 13;30(9):1279–1290. doi: 10.1016/j.mri.2012.06.003

Figure 4.

Figure 4

Ballooning created at catheter tip using the 3D-bSSFP sequence. A) a sagittal image using using fat suppressed 3D-FSE 1.2 mm slice width, taken over approximately 5 minutes shows the difficulty in identifying catheter tips, whereas the B) 3D fat suppressed balanced SSFP, 1.6 mm slice width, over approximately 1.2 minutes allows rapid identification of the catheter tip. This determines the deepest point of insertion, in order to avoid bowel insertion, and covers the length of the tumor. All subsequent needles are inserted to a similar depth based on tumor location. Similar results are seen on axial images C) 3D-FSE and D) 3D balanced SSFP, where instead of the balloon configuration seen on the sagittal image, a cross centered on each catheter can be visualized.