Page 28 - AERB Bulletin English

Brachytherapy

In brachytherapy, source is kept very near to the lesion. The radioisotopes used
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are 192 Ir, 137 Cs, Sr, 106 Ru, 125 I and Co with activity range from few MBq to GBq.
They are of moderate radiation hazard potential as compared to teletherapy.

Nuclear Medicine
Nuclear medicine facility uses very small amount of
radioactive material in the form of radio-pharmaceuticals
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(eg. 99m Tc, 131 I, 201 Tl and F) for diagnosis and treatment.
Imaging equipment such as PET-CT and Single Photon
Emission Computed Tomography (SPECT) are used in
these practices. The facilities using radio-pharmaceuticals
are of moderate-to-low radiation hazard.

Diagnostic Radiology (X-ray)

X-rays are used in medical facilities as an important diagnostic tool. Following practices use X-ray for various
diagnostic examinations.

Interventional Radiology Computed Tomography (CT) Radiography and Fluoroscopy
equipment (Cath-Lab)
CT is a non-invasive medical Radiography, Fluoroscopy, Dental
These equipment are used examination that uses X-ray X-ray, Mammography, Bone
in operation theatres for equipment to produce cross- Mineral Densitometer equipment
various interventional procedures sectional images of the body. are used for diagnostic purpose.
and pose moderate radiation CT equipment Pose moderate These constitute around 70-80%
hazard to patients and medical radiation hazard potential to both of all X-ray equipment that are
professionals involved in worker and patient. used, and are of low-to-very low
operation of the equipment. radiation hazard potential, to both
There are 4,824 CT equipment.
worker and patients.
There are 1,944 Cath Lab.
equipment. There are about 70,578 such
medical diagnostic X-ray
equipment.

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AERB BULLETIN 2019
AERB BULLETIN 2019