SPECT CT merges functional SPECT images with CT anatomy to enhance localization and diagnostic specificity.
CT can be low dose for localization or diagnostic quality. SPECT reconstruction and attenuation correction improve quantification.
Bone SPECT CT for occult fractures infection localization and parathyroid imaging.
Radiation from both components. Careful protocol selection minimizes dose while preserving diagnostic value.
Radiography uses x ray beams and detectors to produce two dimensional projection images. It is fast widely available and the first line modality for many musculoskeletal and thoracic problems.
Standard views such as AP PA lateral and oblique and correct patient positioning are essential for diagnostic quality. Exposure factors are adjusted for patient size and clinical question.
Common indications include fracture detection chest evaluation and line and tube placement. Portable radiography enables bedside imaging for critically ill patients.
Projectional overlap can obscure pathology. Ionizing radiation requires ALARA principles and appropriate shielding.
