Gadolinium-DTPA enhancement of dural structures on MRI after surgery.
Gadolinium-DTPA enhanced MRI was examined before and after surgery in 14 patients with particular attention to the enhancement of falx cerebri, tentorium cerebelli and dura mater. A marked enhancement was observed in 2 falx and 2 tentorium before surgery, whereas it was observed in 7 falx, 9 tentorium and 11 dura after surgery. Among 6 falx, 7 tentorium and 12 dura showing increased enhancement after surgery, 2 falx, 3 tentorium and 8 dura showed marked enhancement which was not observed before surgery. A small amount of subdural haemorrhage during surgery is known to heal as subdural neomembrane with capillaries. An increased enhancement of dural structures conceivably derives from the extravasation of Gd-DTPA through capillaries involved in the subdural neomembrane. In the postoperative MRI, the enhancement of dural structures should be taken into consideration.
Suzuki
M
M
Department of Radiology, Kanazawa University School of Medicine.
Takashima
T
T
Kadoya
M
M
Ueda
F
F
Yamashima
T
T
Yamashita
J
J
D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D003287:Contrast Media; D003399:Craniotomy; D004388:Dura Mater / Q000473:pathology / Q000601:surgery*; D005260:Female; D019786:Gadolinium DTPA; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011183:Postoperative Complications / Q000175:diagnosis*
D003287:Contrast Media; D009942:Organometallic Compounds; D004369:Pentetic Acid; D019786:Gadolinium DTPA