000			03255cam a2200349 a 4500
003			EG-GiCUC
005			20250223032105.0
008			181025s2018 ua dh f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.11.02.M.Sc.2018.Ha.A
100	0		_aHala Magdy Abdelaleem Shallan
245	1	0	_aAnatomical variations of the vertebral artery and its relation to the atlas vertebra : _bRadiological and dry bone study / _cHala Magdy Abdelaleem Shallan ; Supervised Fayza Abdel Raouf Abdelgawad , Mohamed Hafez Shaaban , Doaa Mahmoud Shuaib
246	1	5	_aالاختلافات التشريحية للشريان الفقري وعلاقته بفقرة الفهقة : _bدراسة إشعاعية و على العظام الجافة
260			_aCairo : _bHala Magdy Abdelaleem Shallan , _c2018
300			_a120 P. : _bcharts , facsimiles ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Anatomy
520			_aBackground : Variations of the vertebral artery are important for diagnostic and interventional angiographic procedures as well as for the neurosurgeons and orthopaedic surgeons.Aim of the work: To describe the anatomical variations of the vertebral artery and to provide a quantitative and qualitative anatomy of the vertebral artery groove of the atlas vertebra using MDCTA in Egyptian population and dry atlas vertebrae. Material and Methods: The present study consisted of 100 MDCTA images obtained from Radiology department, faculty of medicine, Cairo University and Nile Scan Imaging Center. Each radiological image was evaluated for the vertebral artery origin, level of entrance into foramen transversarium, calibre, distance from the midline and the presence of ponticulus posticus. 50 atlas vertebrae were obtained from the Anatomy department, faculty of medicine, Cairo University. Each vertebral artery groove was evaluated for the presence of ponticulus posticus, inner and outer distances from the midline, width and thickness. Results: Most of arteries arose from the subclavian artery (91% on the left and 99% on the right). The left vertebral artery arose directly from the aortic arch in 7% of cases and was absent in 2% of cases. In the majority of cases, the arteries entered the foramen transvesarium at C6 (91% on the left and 93% on the right). The mean diameter of the artery was greater on the left (3.67 ± 1.07 mm) as compared to the right side (3.36 ± 0.93 mm). Ponticulus posticus was detected in 47% of cases in radiological images and 96% of dry bones.Conclusion: Variations of the vertebral artery and vertebral artery groove are common in the Egyptian population. The most important variations are the aortic origin of the vertebral artery and presence of ponticulus posticus
530			_aIssued also as CD
653		4	_aMDCTA
653		4	_aVariation
653		4	_aVertebral artery
700	0		_aDoaa Mahmoud Shuaib , _eSupervisor
700	0		_aFayza Abdelraouf Abdelgawad , _eSupervisor
700	0		_aMohamed Hafez Shaaban , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aEnas _eCataloger
905			_aNazla _eRevisor
942			_2ddc _cTH
999			_c68165 _d68165