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RT Journal Article
SR Electronic
T1 Extirpation of glioblastomas: MR and CT follow-up of residual tumor and regrowth patterns.
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 77
OP 87
VO 14
IS 1
A1 Forsting, M
A1 Albert, F K
A1 Kunze, S
A1 Adams, H P
A1 Zenner, D
A1 Sartor, K
YR 1993
UL http://www.ajnr.org/content/14/1/77.abstract
AB PURPOSE To optimize the timing of CT and MR after glioblastoma resection and to define the pattern of tumor regrowth.SUBJECTS AND METHODS Sixty-eight patients with glioblastoma were studied prospectively with CT and MR. The first postoperative scan was obtained between day 1 and day 5; follow-up scans were obtained bimonthly.RESULTS Residual tumor was shown most reliably on scans obtained shortly after surgery (MR, 77%; CT, 40.5%). After the fourth day up to 3 months postoperatively, surgically induced enhancement prevented recognition of residual tumor. Seventy-five percent of patients with residual tumor shown by early postoperative MR had progressive disease during follow-up, whereas only 36% of patients without evidence of residual tumor had MR signs of progressive disease.CONCLUSION Early, enhanced, postoperative MR is the radiologic procedure of choice to determine the extent of glioblastoma resection. Gross total tumor resection as determined by early postoperative MR correlates with a prolongation of life.