When your doctor orders a CT Scan to you or one of your acquaintances, ever wondered what it is all about? Or how it will benefit you?
In the past few decades, CT technology has completely evolved and offers accurate multi-dimensional images of the body parts. It helps doctors to diagnose and treat a variety of severe conditions without any hassles.
So what is a CT Scan?
Computed Tomography (CT) imaging is also referred to as Computed Axial Tomography (CAT). The word computed means incredibly robust computer software which is used to analyze the X-ray images created by the CT scan machine. With the help of this program, the radiologists can take each picture, slice generated and rotate it on all sides for different views. They can also zoom in or view it straight on a level of detail that’s extraordinary.
Axial means the anatomical plane of the body, which has cross-sections from head to toe. In a CT scan, there are many sections of images with depth created in the axial plane by a technique called tomography. This technique shows a cross section through a human body or any solid object that uses X-ray. As a result, they get multiple, highly detailed pictures of the human body in seconds.
Benefits of CT Scans over traditional X-rays
CT Scan is an X-ray scan but an advanced one. For example, think of a traditional X-ray as a pair of magnifying glasses or binoculars then a CT is like a telescope. Where X-rays offer two-dimensional images and a flat image of body parts superimposed on top of each other, in a CT, you can arrange the X-rays so that you can rotate it around the subject and capture multiple sections from many different angles of the body.
This is the reason why you lay on a table for a CT and then a doughnut-shaped machine has an X-Ray tube that rotates around you. It revolves around your body up to 360 degrees, which allows up to 360 individual pictures of the body that can be taken at slightly different positions.
With today’s software that makes use of advanced algebra to add, subtract densities at different angles, doctors reckon that there are much more known’s than unknowns for radiologists while reading CT scan images. In fact, you can generate a lot of information about specific areas of the body, especially imperfections than you could before.
CT Scans: Innovation over the Years
First invented in the 1970s in England, the CT was earlier used to produce brain images. And prior to this time, taking a glimpse of the body’s soft tissues or structures like infection, blood, tumor was not possible.
However, now CT is used in a variety of subspecialty of medicine. They are critical in the diagnosis and evaluation of headaches, stroke, head trauma, cancer, stroke, blood clots, appendicitis, pneumonia, and complex fractures.
The first-generation CT scan took minutes to scan only one cross-section of the body. But today’s CT scans have advanced exponentially to test the entire body and generate hundreds of images in just a few seconds. It hardly ever happens that a CT scan takes more than five minutes. This evolution to generate not just three, but four dimensions add up in getting a bigger diagnostic picture.