Which imaging technique is frequently used to guide biopsy procedures?

Ultrasound is frequently used to guide biopsy procedures because it provides real-time imaging, allowing clinicians to visualize soft tissue structures and target lesions accurately during the biopsy. The ability of ultrasound to deliver immediate feedback helps to ensure that needles are positioned correctly within the area of interest, enhancing the precision and safety of the procedure. Additionally, ultrasound is a relatively cost-effective and widely available imaging modality that does not involve ionizing radiation, making it a preferred choice for guiding various biopsies, particularly in superficial structures like the breast, thyroid, and musculoskeletal areas.

While CT scans, X-rays, and MRIs also play important roles in diagnostic imaging, they are less commonly employed for real-time guidance during biopsy procedures. CT scans can be used for biopsies, especially in deeper anatomical areas, but they lack the real-time feedback provided by ultrasound. X-rays are typically not utilized for guiding biopsies due to their limited ability to visualize soft tissue and real-time movement. MRI can offer detailed imaging of certain structures, but it is not as practical for live guidance because the procedure is usually more complex and time-consuming compared to ultrasound.