The range of imaging techniques now available to doctors ensures that injuries and illnesses can be diagnosed quickly without the need for exploratory surgery in many cases.
There are four imaging techniques used extensively in modern diagnostic medicine, with the best technique selected depending on the nature and location of the injury and the patient’s medical history. The advanced technology of remote radiology international reporting service online , interventional radiology,nightawk radiology and nightawk teleradiology by providing 24/ 7 service support , Digital radiology and Teleradiology Service, second opinion doctor radiology is the main benefit by helping the patience to get second opinion consultant of doctor online with low cost effective .
X-Ray Imaging for the Diagnosis of Skeletal Disorders
An diagnostic imaging center and interventional radiology is the preferred choice of imaging test to diagnose bone injuries and to determine their severity. An X-ray analysis is a quick and effective imaging technique in which X-rays are passed through the body in a short pulse with the image captured on a digital flat panel detector.
The resultant radiograph is primarily used to diagnose problems with the skeletal system, although an X-ray can also be used to assist with the diagnosis of lung problems, bowel obstructions and kidney stones. The benefits of this technique are limited as x-ray imaging lacks the sensitivity necessary to diagnose most soft tissue injuries.
CT scanning is an imaging technique first developed in 1947, although it took the work of Dr. Alan Cormack and Godfrey Hounsfield – two British engineers – to develop the process into what we know today. Rather than passing x-rays through the body to create a 2 dimensional image, a CT scan builds a 3 dimensional image of an internal structure.
CT scans take tomographic images in multiple directions, essentially compiling a number of 2 dimensional x-ray images to build a 3 dimensional picture of an organ or tissue. A CT scan is therefore a more powerful imaging test than standard X-ray radiographs.
A CT scan can distinguish tissues with differing densities of as little as 1%, making this advanced X-ray imaging technique useful for the diagnosis of the majority of internal soft tissue injuries, although the radiation dose a patient receives from this type of test is higher than a standard x-ray analysis.
Magnetic Resonance Imaging (MRI)
Magnetic Resonance Imaging (MRI) – also known as magnetic resonance tomography (MRT) uses magnetic fields rather than X-rays to generate a 3 dimensional image of the body. The technique produces clearer images of soft tissues than can be generated with X-rays, with the technique preferred over CT scanning for brain scans and with tumor detection.
A major benefit of MRI imaging comes from the fact that it does not use potentially harmful ionizing radiation to generate an image, thus reducing the health risk to patients. However, patients with implants such as pacemakers, insulin pumps, prostheses or metallic implants cannot undergo this type of test due to the high risk of injury.
The cost of an MRI scan may be a prohibitive factor for many patients, with other scanning techniques – such as computed tomography – a lower cost alternative.
Ultrasound imaging – also known as ultrasonography – involves the use of high frequency sound waves to build real-time images of internal organs, muscles, tendons and other soft tissues. Ultrasound can determine the position, structure and size of internal organs and soft tissues and is an invaluable imaging technique for monitoring the health of a baby during pregnancy.
Ultrasound is a low-cost imaging technique which can be administered in numerous settings due to the portability of the equipment. Ultrasound also has no known health risks and does not use any ionizing radiation.