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Skeletal Scintigraphy

Basics Description Skeletal scintigraphy is a nuclear medicine imaging method for bone disease. Advantages: High sensitivity for early detection of disease Whole body survey Disadvantage: Limited specificity Diagnosis Signs and Symptoms Indications Whole body skeletal scintigraphy: Primary bone tumors Osteomyelitis Joint prosthesis pain Occult fractures Stress fractures and shin splints Spondylosis Reflex sympathetic dystrophy […]

Musculoskeletal Radiography

Basics Description Plain radiography has been the primary musculoskeletal imaging technique for >100 years. X-ray beams generated by an x-ray tube pass through the body part to be imaged, and differential absorption and scattering of the x-ray beams occur. The exiting beam carries information about the density of the material traversed. This information is […]

Magnetic Resonance Imaging

Basics Description MRI is a noninvasive diagnostic technique that uses hydrogen atoms in the body to create an image. MRI has several advantages over other imaging techniques: Higher contrast resolution More sensitive than CT in detecting bone marrow/soft-tissue disease No exposure to irradiation Multiplanar imaging capability Diagnosis Indications: Evaluation of joints Detection of ligament […]

Computed Tomography

Basics Description CT is a noninvasive diagnostic technique that uses a rotational radiographic source to generate cross-sectional images. CT is particularly advantageous for musculoskeletal imaging when used with multiplanar, volume-rendered reconstruction techniques. Etiology Chronology of development : 1972: Introduction 1974-1976: 1st clinical scanners installed 1980: Became widely available 1985-1986: Introduction of modern applications, such […]

Accessory Navicular

Basics Description

This anatomic variant consists of an accessory ossicle located at the medial edge of the navicular Accessory ossicles are derived from unfused ossification centers. Considered an incidental finding on radiographs, but may become symptomatic Classification: 3 major types of accessory navicular adjacent to the posteromedial navicular tuberosity Type I: Small, 3-mm sesamoid […]