H. Shigeta et al., DIGITAL ANGIOTOMOSYNTHESIS FOR PREOPERATIVE EVALUATION OF CEREBRAL ARTERIOVENOUS-MALFORMATIONS AND GIANT ANEURYSMS, American journal of neuroradiology, 15(3), 1994, pp. 543-549
Citations number
15
Categorie Soggetti
Neurosciences,"Radiology,Nuclear Medicine & Medical Imaging
PURPOSE: To evaluate the clinical utility of the digital angiotomosynt
hesis technique for giving additional information regarding critical a
natomy of cerebrovascular lesions before surgical intervention. METHOD
: Seven arteriovenous malformations and three giant aneurysms were exa
mined with digital angiotomosynthesis; these images were compared with
conventional angiograms. RESULTS: 1) Detailed recognition of three-di
mensional vascular structures of the arteriovenous malformation and gi
ant aneurysm was facilitated by the cine mode of digital angiograms an
d angiotomograms. 2) Reconstructed angiotomograms could show clear sep
aration of overlapping vessels and demonstrate fine vasculature. 3) Fi
ne feeders, which were difficult to trace on the conventional angiogra
m, were more easily recognized in ail cases of arteriovenous malformat
ion. 4) Small arteries passing in close proximity to the arteriovenous
malformation nidus were identifiable. 5) Fine arterial branches, bein
g obscured by big shadows of giant aneurysms on the conventional angio
grams, were well identified. 6) The anatomic relationship of bone stru
ctures to the giant aneurysm was clearly shown. CONCLUSIONS: Digital a
ngiotomosynthesis is helpful for recognizing the three-dimensional and
detailed vascular anatomy of arteriovenous malformations and giant an
eurysms and provides neurosurgeons with useful information for preoper
ative evaluation.