The Advancement In Biomedical Technologies

Clinical doctors employ a number of simple instruments, such as clinical thermometer, stethoscope to hear the natural sounds inside your body and so on. Technological developments have revolutionised the instruments used for disease diagnosis. Any modern hospital or clinic features a wide range of such devices.

A great deal can be learnt about our body by using x-rays and scanners. The image so obtained reveal defects and abnormalities, which aid in disease diagnosis.

ANGIOGRAPHY
Digital subtraction angiography (DSA), is an imaging technique that produces clear views of flowing blood in vessels and indicates the presence of blockage, if any.

An angiography is taken of the organ, for example, heart and it's major blood vessels, and stored in a computer.

MAGNETIC RESONANCE IMAGING
The magnetic resonance imaging (MRI) yields the best pictorial form and it does not expose the patient to potentially harmful ionising radiations.

MRI relies on the phenomenon known as nuclear magnetic resonance(NMR). Scientists picked hydrogen as the basis for MRI scanning because of its prominent magnetic qualities.

POSITRON EMISSION TOMOGRAPHY

Positron emission tomography (PET) scanners monitor the consumption of a substance like glucose is tagged with a radioisotope that has radioactive nuclei deficient in neutrons and with an excess of protons.