Knowledge - 'COMPUTED TOMOGRAPHY SCAN'

COMPUTED TOMOGRAPHY SCAN

There are two main limitations of using conventional X-rays to examine internal structures of the body. Firstly, superimpositions of the 3-dimensional information onto a single plane make diagnosis confusing and often difficult. Secondly the photogra...See more

phic film usually used for making radiographs has A limited dynamic range and therefore only object that have large variation in the X-ray absorption relative to their surroundings will cause enough contrast differences on the film to be distinguished by the eye. Thus, the detail of bony structures can be seen, it is difficult to discern the shape and composition of soft tissue organ accurately.

Added: 4 years ago