Study of Morphology of Basilar Artery in Jharkhand Population

نویسندگان

  • Rajesh Kumar Kushwaha
  • Kumar Dubey
چکیده

Introduction: Basilar artery is a single trunk, formed at the pontomedullary junction, by joining two vertebral arteries. It runs in the median groove of Pons, in the subarachnoid space. It ends by dividing into right and left posterior cerebral arteries, at the upper border of pons.The sound knowledge of morphology and variations of basilar artery and its branches not only help radiologist, in the study of CT angiograms but also helps neurosurgeons in neuroendoscopic surgical procedures. It also helps neurologist to understand clincopathological condition, which may arise due to abnormalities present in the artery. Methods: The morphological study of basilar artery was done by taking 13 human brains, obtained from the cadavers, used in the routine educational dissection for undergraduate students in department of Anatomy,Rajendra institute of Medical sciences, Ranchi, Jharkhand, India, for a period of 1 & 1/2 years from March 2015 to October 2016.The Process was undertaken according to the dissection method as per the Cunningham manual. The variation in length and diameter was noted by using verniercalliper . Results: Formation of basilar artery was at ponto-medullary junction, in 38.46% of cases, above pontomedullary junction in 38.46% of cases and below ponto-medullary junction in 23.07% of cases. Basilar artery runs in the basilar groove, present on ventral surface of pons. Length of basilar artery was varying between 24mm to 40mm and the mean length was 29.72 mm. At the mid level, the diameter of basilar artery was ranging between 3.5mm to 5mm. The mean value was 4.36mm. Basilar artery terminated at midbrainpons junction in 53.84% of cases, in 38.46% of cases terminated just above midbrainpons junction and in 7.69% of cases, basilar artery terminated below midbrain-pons junction. Discussion: Recent advances in interventional radiology, microscopic and neuroendoscopic procedures (i.e. Transluminal angioplasty, vascular stunt and bypass surgeries), morphological study of skull base vessels have gained significance.The branches of vertebrobasilar system supply the most vital structure of our nervous system i.e. brain stem, which increases its significance. -------------------------------------------------------------------------------------------------------------------------------------Date of Submission: 08 -08-2017 Date of acceptance: 20-09-2017 ------------------------------------------------------------------------------------------------------------------------------------------------

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تاریخ انتشار 2017