Evaluation of tracheal bifurcation level in Sudanese using computerized tomography

Abstract

The study aim to evaluate tracheal length and bifurcation level in Sudanese and to investigate the effect of body habitus, tracheal dimension. using chestcomputed tomography in children, adult, ill and well at duration Feb to May 2013. The study was conducted at Omdurman Medical Crops in computed tomography department – El NileenCenter Radiology department, and Khartoum diagnosable center. The study population is 50 (22 female and 24 male, age range 10-83 years) which was drawn from the patient referred CT scan for various indication total. Helical CP enable acquisition of reliable measurement may be performed using reconstructed image. Those 50 patients clinically diagnose pathological case of different age and genders are studied patients under went spiral Ct which enables the acquisition of volumetric images of the chest and reliable measurement may be performed using reconstructed images CT was used to investigate whether or not the tracheal bifurcation angle is influenced by patient gender, age , bodyhight , habitus, dimensions of chest and tracheal dimension. The study duration between Feb to May 2013. Scanning was done using Siemens and 64 multi slice, machine collimation 1-2 ml and interval 10 mm with 120 Kv-140 Kv. Out off 50 patients 22 female and 26 male, 5 patients 6.75 years (Average) years 8 15.5 years, 8 34.5 years, 13 patients of 48.5 years, 4 57.5 and 11 patients 76.5 years.( Average) the tracheal bifurcation level in 80% at five thoracic vertebrae, 10% at four thoracic vertebrae, 8% at six thoracic vertebrae, 2% at 3 thoracic vertebrae. The study found that the mean of tracheal length 13.7 cm the carina and sub carinal angle 73.6 , 68.7, the mean of tracheal transvers tracheal diameters at the level of seventh cervical spine, first thoracic vertebrae is 15.6m m , 15.7 mm , 16.4mm, while the antero posterior diameter of trachea at the following level is 16.1 mm , 16.8mm and 17.6mm. The search confirm that the spiral Ct scanner more accurate modality to determine the tracheal length and bifurcation level. The study conclude that there were more main role of CT and chest X-ray in diagnoses tracheal disease, tracheal length and tracheal diameter and bifurcation level. The study recommended that any adopted diagnose of to tracheal in chest X-ray should following by CT chest to detect any possible of tracheal error leading in length or bifurcation level due to scanning magnification or tracheal abnormalities or any other pathological foundation