TY - JOUR
T1 - Assessment of the signal intensity distribution pattern within the unruptured cerebral aneurysms using color-coded 3D MR angiography
AU - Satoh, Toru
AU - Omi, Megumi
AU - Ohsako, Chika
AU - Katsumata, Atsushi
AU - Yoshimoto, Yusuke
AU - Tsuchimoto, Shoji
AU - Kunishio, Katsuzo
AU - Onoda, Keisuke
AU - Tokunaga, Koji
AU - Sugiu, Kenji
AU - Date, Isao
PY - 2005/5
Y1 - 2005/5
N2 - To evaluate the interaction between the MR signal intensity distribution pattern and bleb formation/deformation of the aneurysmal dome, fifty cases of the unruptured cerebral aneurysms were investigated with the color-coded 3D MR angiography. Patterns were categorized into central-type, neck-type and peripheral-type according to the distribution of MR signals with low-, moderate- and high signal intensity areas. Imaging analysis revealed the significant relationship (P<0.02) of the peripheral-type aneurysms to the bleb formation and deformation of the dome, compared with those of central- and neck-type. Additionally, peripheral-type signal intensity distribution pattern was shown with aneurysms harboring relatively large dome size and lateral-type growth including internal carotid aneurysms. Prospective analysis of intraaneurysmal flow pattern with the color-coded 3D MR angiography may provide patient-specific analysis of intraaneurysmal flow status in relation to the morphological change of the corresponding aneurysmal dome in the management of unruptured cerebral aneurysms.
AB - To evaluate the interaction between the MR signal intensity distribution pattern and bleb formation/deformation of the aneurysmal dome, fifty cases of the unruptured cerebral aneurysms were investigated with the color-coded 3D MR angiography. Patterns were categorized into central-type, neck-type and peripheral-type according to the distribution of MR signals with low-, moderate- and high signal intensity areas. Imaging analysis revealed the significant relationship (P<0.02) of the peripheral-type aneurysms to the bleb formation and deformation of the dome, compared with those of central- and neck-type. Additionally, peripheral-type signal intensity distribution pattern was shown with aneurysms harboring relatively large dome size and lateral-type growth including internal carotid aneurysms. Prospective analysis of intraaneurysmal flow pattern with the color-coded 3D MR angiography may provide patient-specific analysis of intraaneurysmal flow status in relation to the morphological change of the corresponding aneurysmal dome in the management of unruptured cerebral aneurysms.
KW - Intraaneurysmal flow
KW - MR angiography
KW - Three-dimensional reconstruction
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M3 - Article
C2 - 15912764
AN - SCOPUS:19944420164
SN - 0301-2603
VL - 33
SP - 445
EP - 454
JO - Neurological Surgery
JF - Neurological Surgery
IS - 5
ER -