imagingguided

Imagingguided, also written as imaging-guided, refers to medical procedures that rely on imaging technologies to plan, guide, and monitor invasive interventions. It encompasses a range of modalities, including ultrasound, computed tomography (CT), fluoroscopy, magnetic resonance imaging (MRI), and positron emission tomography (PET)–based guidance. Real-time imaging modalities such as ultrasound and fluoroscopy allow dynamic navigation of instruments, while CT and MRI provide high-resolution anatomical detail for precise targeting. PET-based guidance may be combined with CT or MRI to target lesions with metabolic activity.

Common applications include biopsy of suspicious lesions, drainage of fluid collections, placement of catheters or drains, and ablation therapies such as radiofrequency, microwave, or cryoablation. Image guidance improves diagnostic yield, therapeutic precision, and safety by reducing invasiveness and avoiding critical structures. It is used across oncology, interventional radiology, urology, neurosurgery, and pain management.

Advantages include increased accuracy, real-time feedback, reduced recovery times, and the ability to perform procedures in outpatient settings. Limitations encompass radiation exposure from CT and fluoroscopy, MRI-related constraints (compatibility, safety, claustrophobia), artifacts, and reliance on skilled operators and suitable equipment. Availability and cost can also affect access to imaging-guided services.

Training and practice are primarily conducted by interventional radiologists, though other specialists may perform imaging-guided procedures with appropriate training. Guidelines emphasize patient selection, radiation safety, sterile technique, and competency in imaging interpretation and procedural skills.

See also: interventional radiology, image-guided biopsy, image-guided therapy, ablation.