Imaging Modalities

Overview

Imaging modalities allow clinicians to visualise internal structures and interpret anatomy in a clinical context. This section introduces the most widely used imaging techniques and explains how they generate anatomical information. Understanding these principles helps learners integrate radiological findings with anatomical knowledge.

Core Concepts

Topics include plain film X-ray, computed tomography (CT) and magnetic resonance imaging (MRI). Each article outlines the basic physics, strengths, limitations and typical uses of each modality, with examples highlighting how different techniques reveal specific anatomical features.

Clinical Relevance and Learning Focus

Familiarity with imaging modalities is essential for interpreting diagnostic studies, understanding pathology and planning treatment. This section supports learners in recognising normal anatomy, appreciating modality-specific detail and developing confidence in radiological interpretation.

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Plain Film X-Ray

Computed Tomography (CT) Scanning

MRI scan of the lumbar spine in sagittal plane showing severe disc herniation at the L4-L5 level.

Magnetic Resonance Imaging (MRI) Scanning

Popular

Palmar view of the labeled thenar muscles of the thumb, including the abductor pollicis brevis, opponens pollicis, and flexor pollicis brevis, along with the recurrent branch of the median nerve.
Encyclopaedia

Abductor Pollicis Brevis

by Dr Oliver Jones

Diagram illustrating the course of the occipital artery arising from the external carotid artery in the neck.
Encyclopaedia

Occipital Artery

by Nicholas Fernandes

Illustration showing the course of the ilioinguinal nerve within the lumbar plexus.
Encyclopaedia

Ilioinguinal Nerve

by Mihir Himanshu Majeethia