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Imaging and radiology

Definition:

Radiology is a branch of medicine that uses imaging technology to diagnose and treat disease.

Radiology may be divided into two different areas, diagnostic radiology and interventional radiology. The field of therapeutic radiation, which uses more powerful x-rays to treat cancer, is now called radiation oncology.

Doctors who specialize in radiology are called radiologists.



Alternative Names:

Interventional radiology; Diagnostic radiology; X-ray imaging



Information:

DIAGNOSTIC RADIOLOGY

Diagnostic radiology helps health care professionals see structures inside your body. Doctors that specialize in the interpretation of these images are called diagnostic radiologists. Using the diagnostic images, the radiologist or other physicians can often:

  • Diagnose the cause of your symptoms
  • Monitor how well your body is responding to a treatment you are receiving for your disease or condition
  • Screen for different illnesses, such as breast cancer, colon cancer, or heart disease

The most common types of diagnostic radiology exams include:

INTERVENTIONAL RADIOLOGY

Interventional radiologists are doctors that use imaging such as CT, ultrasound, MRI and fluoroscopy to help guide procedures. The imaging is helpful to the doctor when inserting catheters, wires, and other small instruments and tools into your body. This typically allows for smaller incisions (cuts).

Doctors can use this technology to diagnose or treat conditions in almost any part of the body instead of needing to directly look inside of your body through a scope (camera) or with open surgery.

Interventional radiologists often are involved in treating cancers or tumors, blockages in the arteries and veins, fibroids in the uterus, back pain, liver problems, and kidney problems.

The doctor will make no incision or only a very small one. You rarely need to stay in the hospital after the procedure. Most persons need only conscious sedation (medicines to help you relax).

Radiologists who perform these types of procedure receive 1 or 2 extra years of training after they have finished medical school, a medical or surgical internship, and four years of basic training in radiology.

Examples of interventional radiology procedures include:

  • Angiography or angioplasty and stent placement
  • Embolization to control bleeding 
  • Tumor embolization using chemoembolization or Y-90 radioembolization
  • Vertebroplasty and kyphoplasty
  • Needle biopsies of different organs, such as the lungs and thyroid gland
  • Tumor ablation with radiofrequency ablation, cryoablation, or microwave ablation 
  • Breast biopsy, guided either by stereotactic or ultrasound techniques
  • Uterine artery embolization
  • Feeding tube placement
  • Venous access catheter placement, such as Ports and PICCs



Review Date: 1/22/2014
Reviewed By: Jason Levy, MD, Northside Radiology Associates, Atlanta, GA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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