News | July 24, 2007

MDCT Angiography Accurate in Aneurysm Detection, Therapy Planning

July 25, 2007 – Multidetector computed tomography (MDCT) angiography is highly accurate in depicting intracranial aneurysms, according to a study published in the August issue of Radiology. In addition, MDCT angiography can be used to quickly determine the possibility of using minimally invasive treatment rather than open surgery.

“MDCT angiography enables faster imaging and provides virtually unlimited viewing angles that can facilitate assessment of aneurysm therapy,” said Karsten Papke, M.D., lead author of the study from the Department of Radiology at Klinikum Duisburg in Germany .

Intracranial aneurysms are characterized by an abnormal bulging of one or more of the blood vessels of the brain. According to the National Institutes of Health, 5 percent of people in the United States have some type of intracranial aneurysm. These aneurysms often are not discovered until they rupture, causing bleeding in the brain or in the subarachnoid membrane surrounding the brain. This type of bleeding is called a subarachnoid hemorrhage and can result in brain damage, stroke or even death.

Currently, the gold standard in diagnosis of intracranial aneurysms is digital subtraction angiography (DSA). However, MDCT angiography offers a decreased risk of morbidity and mortality compared to DSA. In addition, MDCT angiography offers distinct advantages over DSA in suspected cases of subarachnoid hemorrhage, because an MDCT angiography exam may easily be added to the standard head CT with little extra exam time and can provide a wide variety of three-dimensional viewing angles. Timely diagnosis is critical when dealing with a ruptured aneurysm.

“An important advantage of MDCT angiography is that information about the presence and characteristics of aneurysms is available at the earliest possible time,” Dr. Papke said. “The capability to view different 3-D data sets obtained with MDCT also yields additional anatomic information that is difficult or time-consuming to achieve with DSA.”

The researchers used 16-detector MDCT angiography and DSA to study 87 patients suspected of having subarachnoid hemorrhage. MDCT angiography correctly identified 62 of 63 patients with 80 of 84 aneurysms and correctly ruled out aneurysms in 24 patients. DSA identified 62 patients with 79 aneurysms and ruled out aneurysms in 23 patients, giving a slight edge in diagnostic accuracy to MDCT angiography.

Data on each ruptured aneurysm found with MDCT angiography was used to determine whether the aneurysm was suitable for endovascular coil placement, or whether a neurosurgical procedure was necessary. Based on actual treatment performed after work-up, the possibility of coil placement was correctly assessed in 69 of 74 (93 percent) of targeted aneurysms.

“MDCT can be used as the first step in diagnostic work-up of patients with subarachnoid hemorrhage,” Dr. Papke concluded.

“Intracranial Aneurysms: Role of Multidetector CT Angiography in Diagnosis and Endovascular Therapy Planning.” Collaborating on this paper with Dr. Papke were Christiane K. Kuhl, M.D., Martin Fruth, M.D., Cornel Haupt, M.D., Martin Schlunz-Hendann, M.D., Dieter Sauner, M.D., Martin Fiebich, Ph.D., Alan Bani, M.D., and Friedhelm Brassel, M.D.

Source: Radiology is a monthly scientific journal devoted to clinical radiology and allied sciences. The journal is edited by Anthony V. Proto, M.D., School of Medicine , Virginia Commonwealth University, Richmond , Va. Radiology is owned and published by the Radiological Society of North America, Inc.

For more information: www.RSNA.org/radiologyjnl

Related Content

CT Offers Non-Invasive Alternative for Complex Coronary Disease Treatment Planning based on data from the SYNTAX III Trial. The use of FFR-CT in the trial showed better planning for interventional procedures.

CT cffers a non-invasive alternative for complex coronary disease treatment planning based on data from the SYNTAX III Trial. 

News | CT Angiography (CTA) | October 16, 2018
A new study published in the European Heart Journal shows computed tomography (CT) can be a useful aid in heart team...
A comparison of CT image of heavily calcified coronary arteries that appear to present a significant hemodynamic blockages and the correspending FFR-CT showing the patient had adequate blood flow and does not need a diagnostic angiogram or intervention.

A comparison of a CT image of heavily calcified coronary arteries that appear to present a significant hemodynamic blockage and the corresponding FFR-CT showing the patient had adequate blood flow and does not need a diagnostic angiogram or intervention. Image courtesy of Kavitha Chinnaiyan, William Beaumont Hospital.

Feature | CT Angiography (CTA) | July 23, 2018 | Dave Fornell, Editor
The use of non-invasive fractional flow reserve CT (FFR-CT) was the hottest topic discussed at the Society of Cardiov
Videos | CT Angiography (CTA) | July 19, 2018
Kavitha Chinnaiyan, M.D., FACC, FSCCT, associate professor, Oakland University, William Beaumont School of Medicine,
Videos | CT Angiography (CTA) | July 18, 2018
A discussion with Gianluca Pontone, M.D., Ph.D., FSCCT, director of cardiovascular MRI, Centro Cardiologico Manzino,
Videos | CT Angiography (CTA) | July 17, 2018
A discussion with Todd Villines, M.D., FACC, FAHA, FSCCT, cardiologist, Georgetown Medical Center, and president of t
HeartFlow Announces New Commercial Coverage With UnitedHealthcare
News | CT Angiography (CTA) | July 03, 2018
HeartFlow Inc. announced that UnitedHealthcare now covers the HeartFlow FFRct Analysis, extending access to their 45...
Post-Mortem CT Angiography Illuminates Causes of Death
News | CT Angiography (CTA) | June 25, 2018
Computed tomography (CT) angiography is a useful adjunct to autopsy that is likely to increase the quality of post-...
iSchemaView Receives FDA Clearance for Rapid CTA
Technology | CT Angiography (CTA) | May 01, 2018
Cerebrovascular imaging analysis company iSchemaView received final clearance from the U.S. Food and Drug...
The use of metal artifact reduction software on this CCTA (CTA) cardiac CT from an Canon, Toshiba, Aquilion Precision, allows clear visualization inside a coronary stent. The 0.25 mm high-resolution reconstruction also helps delineate the various components of plaque.

The use of metal artifact reduction software on this Aquilion Precision image allows clear visualization inside a coronary stent. The 0.25 mm high-resolution reconstruction also helps delineate the various components of plaque.

Feature | CT Angiography (CTA) | April 26, 2018 | Dave Fornell
There have been a few big, recent advancements in cardiac computed tomography angiography (CCTA) imaging technology.
Siemens Healthineers, Florida Hospital Collaborate to Improve Healthcare Outcomes
News | CT Angiography (CTA) | January 23, 2018
January 23, 2018 – Siemens Healthineers and Florida Hospital, part of Adventist Health System, have announced a multi
Overlay Init