The document provides an overview of basic radiology and imaging terms. It defines common anatomical terms like anterior, posterior, proximal and distal. It also defines common radiological views and planes such as PA, AP, axial, sagittal and coronal. The document describes different imaging modalities like CT scan, MRI, ultrasound and their basic principles. It provides a brief introduction to echogenicity in ultrasound and the nature of X-rays.

1. BASIC RADIOLOGY & IMAGING
Sohel Rana Sumon
BSc(Radiology), PG(DMU), MPH
Lecturer
Department of Radiology & Imaging.
State college of health science.

2. ANATOMICAL & RADIOLOGICAL TERMS
 Anterior(ventral), posterior(dorsal), distal, proximal, medial, lateral,
superior, inferior, external, internal, frontal, occipital, caudal,
superficial, deep, central, peripheral.
 PA- Posterior Anterior
 AP- Anterior Posterior
 Oblique(Rt/Lt)
 Erect: standing or sitting.
 Decubitus: lying down.
 Supine: lying on back
 Prone: lying face-down
 Occipitomental(OM) view
uses in PNS.

5. RADIOLOGICAL PLANES
 Axial (Transverse) planes.
 Sagittal planes.
 Coronal planes.

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9. CT-SCAN & MRI
 Computed Tomography Scan : Uses X-rays to make detailed
pictures of structures inside of the body.
 MRI : Magnetic resonance imaging (MRI) is a test that uses a
magnetic field and pulses of radio wave energy to make pictures of
organs and structures inside the body.

10. CT-SCAN VS MRI

11. USG
 Ultrasonography : Ultrasound uses high-frequency sound waves to
create real-time pictures or video of internal organs or other soft tissues.
 sound waves that have frequencies greater than 20,000Hz.

12. ECHOGENICITY
Echogeneity is the ability to bounce an echo.

13. BASIC ABOUT X-RAY
 An electromagnetic wave of high energy and very short wavelength, which is
able to pass through many materials opaque to light.