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Interventional Radiology (IR) is a subspecialty of radiology in which minimally invasive procedures are performed using image guidance. Some of these procedures are done for purely diagnostic purposes (e.g., angiograms), while others are done for treatment purposes (e.g., angioplasties). Pictures (images) are used to direct these procedures, which are usually done with needles or other tiny instruments like small tubes called catheters. The images provide road maps that allow the Interventional Radiologist to guide these instruments through the body to the areas of interest.

History


The advancements in the field of radiological imaging such as the Seldinger technique, together with innovations in instrumentation, led to a rapid development in interventional procedures in the 1970s. Cardiovascular procedures were found out to be particularly well-suited for guided and minimally invasive operations, and catheterization remains as one of the main applications for interventional radiology.

Imaging methods


Common interventional imaging methods include X-ray fluoroscopy, computed tomography (CT), ultrasound (US), and magnetic resonance imaging (MRI). Fluoroscopy and computed tomography use ionizing radiation that may be potentially harmful to the patient and, in the case of fluoroscopy, the interventional radiologist. However, both methods have the advantages of being fast and geometrically accurate. Ultrasound suffers from image quality and tissue contrast problems, but is also fast and inexpensive. Magnetic resonance imaging provides superior tissue contrast, at the cost of being expensive and requiring specialized instruments that will not interact with the magnetic fields present in the imaging volume.

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Permanent RADIOLOGY Job in Tri-State area opportunity for Intervental Rad Kentucky with Enterprise Medical Service
Hospital is looking for Interventional Radiologist to join their Radiology Department. In 2006 3,987 Interventional cases were read. Total readings preformed in Radiology Department. They have opened
Permanent RADIOLOGY Job in Western Ohio Ohio with Enterprise Medical Service
Single specialty group in Western Ohio is seeking their 7th Radiologist. Need is due to growth of the community. Handsome compensation package with a 1-2 year partnership track is offered to the qualified
Permanent Radiology Job in Not Disclosed Michigan with
A practice is looking for a board certified or board eligible Radiologist for a permanent opportunity in central Michigan. This regional health system services communities throughout Michigan with a commitment

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ScienceDirect Publication: Current Problems in Diagnostic Radiology

Multidetector Computed Tomography of the Acute Abdomen in the Immunocompromised Host: A Pictorial Review
Sat, 23 May 2009 19:36:59 -0000
Publication year: 2009Source: Current Problems in Diagnostic Radiology, Volume 38, Issue 4, July-August 2009, Pages 145-155Simon P., Spencer , Niall, Power , Rodney H., ReznekImmunocompromised patients include those receiving chemotherapy for malignant disease, post-transplant patients, patients with acquired immunodeficiency syndrome (AIDS), and those receiving steroids for autoimmune diseases. Advances in transplantation, oncology, and the treatment of AIDS have extended these patients' life expectancies and thereby increased the immunocompromised population. Classical clinical signs of abdominal sepsis may be absent in the immunocompromised host. Consequently, the radiologist is increasingly called on to diagnose specific acute intra-abdominal complications associated with immunodeficiency. This review describes the etiology of the acute abdomen in this heterogeneous group of immunocompromised patients, causes including opportunistic infections, neutropenic enterocolitis, complications of therapy, and...
Positron Emission Tomography/Computed Tomography Potential Pitfalls and Artifacts
Sat, 23 May 2009 19:36:59 -0000
Publication year: 2009Source: Current Problems in Diagnostic Radiology, Volume 38, Issue 4, July-August 2009, Pages 156-169Xia, Wang , Spencer, KochWith the recent use of 18-fluoro-2-deoxyglucose (FDG) positron emission tomography (PET) for tumor staging and treatment response, it is important to recognize many pitfalls, artifacts, and benign uptakes that are commonly encountered. Normal physiology can explain many regions of increased FDG activity, as well as incidental benign tumors and benign metabolic conditions. Recognition of characterization of benign causes and physiologic variants for FDG uptake are discussed to avoid improper characterization as a malignancy. A basic understanding of PET/computed tomographic physics is also discussed, in relation to attenuation correction artifacts caused by metallic implants and contrast agents in the gastrointestinal tract,...
Diagnosis and Management of Pseudoaneurysms: An Update
Sat, 23 May 2009 19:36:59 -0000
Publication year: 2009Source: Current Problems in Diagnostic Radiology, Volume 38, Issue 4, July-August 2009, Pages 170-188Baljendra S., Kapoor , Heather L., Haddad , Souheil, Saddekni , Mark E., Lockhart“Pseudoaneurysm” is a term that describes disruption of an artery with patent flow in a defined space beyond the confines of the vessels. A pseudoaneurysm can involve any vascular bed and is usually associated with direct arterial injury or erosion of an artery by an adjacent tumor or inflammation. In this article, we discuss different clinical settings and various imaging modalities such as ultrasound, computerized tomography, magnetic resonance imaging, as well as conventional angiography used for the diagnosis of pseudoaneurysms. We also describe the role of newer endovascular, percutaneous, and traditional surgical approaches for the treatment of visceral and peripheral...

pubmed: 0009-9260

CT "invisible" lesion of the major salivary glands a diagnostic pitfall of contrast-enhanced CT.
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Holy Cross Hospital Interventional Radiology - Based in Fort Lauderdale, Florida.
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Imaging Consultants of South Florida - Specializes in diagnostic imaging and treating of vascular diseases and conditions in south Florida.
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Interventional Associates of Pennsylvania - A vascular and interventional radiology practice offering service at Montgomery Hospital, Fox Chase Cancer Center, and Pennsylvania Hospital, Phiadelphia, PA.

Interventional Radiology at New Britain General Hospital - Team of radiologists interventional radiology services to patients in both an inpatient and outpatient setting. Offering FAQ's and basic information about symptoms and treatments for patients.
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