Background: Non-traumatic myelopathies has several etiologies. Objectives: The aim of the study was to see the etiology of non-traumatic myelopathy based on magnetic resonance imaging (MRI) changes in the context of Bangladesh. Methodology: Patients clinically diagnosed as non-traumatic myelopathy in the department of neurology of Sir Salimullah Medical College and Hospital (SSMCH), and in the inpatient wards of the National Institute of Neurosciences (NINS), considering the inclusion and exclusion criteria were enrolled as the study population from May 2014 to December 2015. Age, gender, clinical presentations and type of lesion based on MRI changes were collected. All the data were analyzed statistically. Results: Total 100 cases satisfied the inclusion and exclusion criteria in this study. Among them, there were 62 males and 38 females with a male to female ratio of 1.63:1. The mean age was found to be (mean ± SD) 45.80 ±15.28 with age ranges from 15 to 74 years. The highest number of patients (26.0%) was in the age group 51-60 years, followed by 24% patients in the age group 31-40 years. Based on MRI scan, most common etiologies that commonly diagnosed are cervical spondylotic myelopathy (31%), transverse myelitis (26%), primary spinal tumour (13%), spinal tuberculosis(12%), spinal metastatic disease (12%), and unclassified (6%). MRI scan also detect the common sites of involvements of these causes. Conclusion: In this study cervical spondylotic myelopathy, transverse myelitis, and spinal tuberculosis are the most common cause of non-traumatic myelopathy in the context of Bangladesh. [Journal of National Institute of Neurosciences Bangladesh, 2018;4(2):87-91] 87 damage or dysfunction of the spinal cord, meningeal or perimeningeal space with high morbidity and mortality 1 . The clinical presentations of nontraumatic myelopathies

Background: Detection of aneurysms among spontaneous subarachnoid haemorrhagic patients is a crucial issue for management. Objectives: The purpose of the present study was to compare the findings of 3D-computed tomographic angiography with digital subtraction angiography for detection of aneurysms among spontaneous subarachnoid haemorrhagic patients. Methodology: This comparative cross-sectional study was carried out in the Department of Neurosurgery and Cath Lab of Dhaka Medical College Hospital (DMCH), Dhaka, Bangladesh in collaboration with private diagnostic centre from September 2013 to February 2015 for a period of six (06) months. Adult patients diagnosed as a case of spontaneous SAH based on clinical features and confirmed by plain CT evidence of subarachnoid blood were included as study cases. Then both CTA and DSA were done in order to detect the cause of bleeding and make a treatment planning. All spiral CTAs were performed on a helical CT-Scan. Four vessels DSA were performed via a femoral approach in DMCH Cath Lab. Result: A total number of 37 patients presented with spontaneous subarachnoid haemorrhage were recruited for this study. CT Angiogram revealed aneurysm in 30(81.08%) patients. AVM found in 02(05.41%) patients and in 5(13.51%) patients CTA was negative for any abnormality. DSA of 37 patients revealed aneurysm in 32(86.49%) patients, AVM in 02(05.41%) patients and negative findings in 03(8.11%) patients. In CT Angiogram 25(67.57%) patients had single aneurysm. In DSA, 27(72.97%) patients had single aneurysm. The mean of the size of the aneurysms in CTA and DSA were in 6.70±3.04 mm and 6.75±2.94 mm (p>0.05). The mean of the neck width of the aneurysms in CTA and DSA were 3.86±2.06 mm and 3.41±1.67 mm (p>0.05). All aneurysm detected in CTA were also revealed in DSA. Conclusion: In conclusion the size, neck width and the location of aneurysm are detected in CTA and DSA equally without any statistical significant difference. Journal of National Institute of Neurosciences Bangladesh, July 2022;8(2):121-125