ABSTRACT
Pericallosal artery aneurysms comprise about 1.5 to 9% of all intracranial aneurysms. Some of them are caused by head injury. We report a 66-year-old male patient with ruptured left pericallosal artery aneurysm, 2.6 x 3.2 mm in size. The patient fell 2 months ago. Operation was done under right interhemispheric approach. The parent artery was avulsed while the clip was adjusted. The avulsed part was sutured and postoperative CAG revealed totally obliteration of the aneurysm while the repaired artery was patent. The patient recovered well after operation
Subject(s)
Humans , Male , Aged , Intracranial Aneurysm/diagnosis , Intracranial Aneurysm/surgeryABSTRACT
Objective To evaluate the usefulness of Doppler micro-probe and rigid endoscope in aneurysm surgery. Methods From April 2005 to July 2006,Doppler micro-probe and rigid endoscope were applied to 96 patients with aneurysm.The number of aneurysm was 107.The diameter of the Doppler probe was 1.5 mm,with a frequency of 20 MHz.Endoscopes with 0,30 and 70 degree were used.Doppler and endoscope were employed before and/or after aneurysm clipping. Results In all the 107 aneurysms,there were 39 in which the endoscope provided information unavailable under the microscope.The clip was adjusted after endoscope and/or Doppler examination in 19 aneurysms,10 of which were due to incomplete clipping,while the other 9 compromise of small perforators. ConclusionDoppler and endoscope are useful in aneurysm surgery,and can be applied both before and/or after clipping.
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Objective To evaluate the size,aspect ratio and configuration in ruptured aneurysms. Methods Three-dimensional CT angiogram of 61 confirmed ruptured saccular aneurysms were analyzed.The maximum diameter and aspect ratio were measured,and the configuration of the aneurysms were observed. Results The average maximum diameter was 8.54 mm,and 78.8% of the aneurysms were less than 10 mm in maximum diameter.The average aspect ratio was 2.15,and more than 65% of the aneurysms had an aspect ratio over 1.6.45.9% of the aneurysms harbored a bleb or were multi-lobular in shape. Conclusion Aneurysms less than 10 mm in maximum diameter are also easy to rupture.More than 60% of the ruptured aneurysms had an aspect ratio over 1.6.Bleb and multi-lobular change are common in ruptured aneurysms.
ABSTRACT
Objective To investigate the accuracy of electrocardiogram(ECG)-gated CT angiography in the detection of bleb in unruptured aneurysm. Methods In 2004,15 unruptured aneurysm patients received ECGgated CT angiography examination. Results Ten of the patients had bleb and the bleb was detected as the pulsation site in ECG-gated CT angiogram.Surgically excised specimen were stained and histological investigation revealed that there were partial or complete absence of tunica media smooth muscle and the internal elastic lamina layer in the aneurysm wall in 15 cases.A sudden reduction of collagen layer was noted in 10 cases with bleb.(Conclusion)ECG-gated CT angiography can be used in the bleb detection of unruptured aneurysms,and its accuracy can be verified by histological examination.