Mukhtiar Ahmed, Hamad Nasir, Ajmal Khan, Khawar Anwar.
To Compare Aneurysmal findings of CTA with Surgical findings in patients of Aneurysmal Subarachnoid Haemorrhage.
Pak J Neuro Surg Jan ;19(4):241-5.

Objective: To compare aneurysmal findings of CTA with surgical findings in patients of aneurysmal subarachnoid haemorrhage. Materials and Methods: This descriptive study was conducted in the department of Neurosurgery, Lahore General Hospital Lahore over a period of nine months from 10th November 2008 to 9th August 2009. Study comprised of thirty-five patients after fulfilling the inclusion and exclusion criteria. All computed tomography angiography (CTA) findings about aneurysmal site, size, side, shaper, neck, direction of fundus, detection perforators and vasospasm were noted by the researcher and compared with surgical findings. Results: On CTA finding of aneurysms, there were 14 (40%) patients of small size (< 7 mm), 12 (34.3%) of large size (7 – 20 mm) and 9 (25.7%) of giant size (> 20 mm). In surgical finding, there were 14 (40%) patients of small size, 11 (31.4%) of large size and 10 (28.6%) of giant size. On CTA finding, there were 31 (88.6%) patients of sacular shape, 2 (5.7%) patients of fusiform shape and 2 (5.7%) patients of bilobed shape. In surgical finding, there were 29 (82.9%) patients of sacular shape, 2 (5.7%) patients of fusiform shape and 4 (11.4%) patients of bilobed shape. On CTA finding, there were 21 (60%) patients of narrow neck (< 2 mm) and 14 (40%) patients of wide neck (> 2 mm). In surgical finding, there were 17 (48.6%) patients of narrow neck (< 2 mm) and 18 (51.4%) patients of wide neck (> 2 mm). Conclusion: It is concluded from this study that there is only minor difference exist between the CTA finding and intraoperative findings of aneurysm. This difference was seen in neck of aneurysm and perforators. In surgical finding the surgeon must be prepared for any unseen event about aneurysm, vessels and surrounding tissue. Abbreviations: AVM: Arteriovenous Malformation. DSA: Digital Subtraction Angiography. CTA: Computed Tomographic Angiography.

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