Instruments used in radiology

Instruments used specially in radiology are as follows:[1][2][3]

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Instrument Uses
Ultrasonography machine uses ultrasound to produce images from within the body; video link
X-ray uses X-rays to produce images of structures within the body; video link
Contrast media for X-rays to provide a high contrast image of the details of the viscera under study; e.g. salts of heavy metals, gas like air, radio-opaque dyes, organic iodides, etc.
Echocardiography machine sonography of the heart is done here to know its function and state
Computer axial tomography scan (CT Scan)/(CAT Scan) to visualize the interior of the body in slices (traditionally showing horizontal slices); video link
Magnetic resonance imaging (MRI) alias Nuclear magnetic resonance (NMR) high strength (0.15 to 1.5 teslas)[4] are used to excite protons that produce the record results (like CT scan). It can show particular tissues more clearly than CT.;[4] video link
Linear accelerator used in radiotherapy for cancer
Functional magnetic resonance imaging (fMRI) video link
Positron emission tomography (PET Scan) video link
Radio-isotope scan or nuclear scintigraphy These radioactive compounds are administered so that specific tissues take them up. The amount and anatomical detail of the uptake produces the scan result.
SPECT scan video link
Interventional radiology minimally invasive surgeries under radiological imaging, e.g. angioplasty, TIPS.
Brachytherapy apparatus video link
Lead shielding visual and physical protection from x-ray

Image gallery


  1. Arun Baran Singha Mahapatra. Essentials of medical physiology. ISBN 81-86793-56-9.
  2. P. Chakraborty; G. Chakraborty. Practical Pathology. ISBN 81-7381-332-9.
  3. Robbins and Cotran Review of Pathology. ISBN 0-7216-0194-4.
  4. 1 2 David Sutton. Radiology and imaging for med. students (7th ed.). ISBN 81-7867-100-X.
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