Infundibular dilation: an anatomical variant or a pre-aneurysm? Advantages of assessment with three-dimensional rotational angiography.

Summary of "Infundibular dilation: an anatomical variant or a pre-aneurysm? Advantages of assessment with three-dimensional rotational angiography."

Whether an infundibular dilation (ID) is an anatomical variant or a pre-aneurysm has not been clearly determined. The aim of the present study was to evaluate the anatomical change of IDs by use of three-dimensional rotational angiography (3DRA) with volume rendering (VR).
One-hundred thirty-eight patients with known or suspected aneurysms, treated consecutively, underwent both two-dimensional digital subtraction angiography (2DDSA) and 3DRA with VR. Two readers evaluated the IDs or aneurysms blindly, using 2DDSA and 3DRA, according to the same diagnostic criteria. A 5-point scale of observer confidence was used to determine the presence of IDs or aneurysms. For 3DRA with VR, the relationship between IDs and aneurysms was classified as one of the three types: type I, protrusion or bulge from side wall of IDs; type II, aneurysms involving or enclosing IDs; or type III, aneurysms and IDs coexisting near each other but with some distance between them.
The number of IDs found by 2DDSA and 3DRA with VR was 41 and 48, respectively. Five anterior choroidal arteries and two posterior communicating arteries IDs were missed by 2DDSA. According to 3DRA with VR, there were five IDs of type I, nine of type II, and 22 of type III.
The 3DRA with VR appears superior to 2DRA for both diagnosing IDs and displaying the anatomical relationship between IDs and aneurysms. The findings also suggest that some IDs might progress to aneurysms or become a part of them, which should be carefully evaluated prior to operation.


Institute of Diagnostic and Interventional Radiology, The Sixth Affiliated People's Hospital, Shanghai Jiao Tong University, No. 600, Yi Shan Road, Shanghai, 200233, China.

Journal Details

This article was published in the following journal.

Name: Surgical and radiologic anatomy : SRA
ISSN: 1279-8517


DeepDyve research library

PubMed Articles [10613 Associated PubMed Articles listed on BioPortfolio]

Assessment of intracranial aneurysm rupture based on morphology parameters and anatomical locations.

The aim of the present study was to identify image-based morphological parameters and anatomical locations associated with intracranial aneurysm (IA) rupture.

Endovascular Abdominal Aneurysm Repair in Women: What are the Differences Between the Genders?

Abdominal aortic aneurysm has a lower incidence in the female population, but a higher complication rate. It was been hypothesized that some anatomical differences of abdominal aortic aneurysm in wome...

Development of the Anatomical Quality Assessment (AQUA) Tool for the Quality Assessment of Anatomical Studies included in Meta-Analyses and Systematic Reviews.

Critical appraisal of anatomical studies is essential before the evidence from them undergoes meta-epidemiological synthesis. However, no instrument for appraising anatomical studies with inherent app...

Radial artery aneurysm in the anatomical snuff box: A case report and literature review.

Distal radial artery aneurysms of the hand are rare. We herein report a rare case of radial artery aneurysm in the anatomical snuff box.

A prospective randomized study comparing the four tract dilation methods of percutaneous nephrolithotomy.

To compare the one-shot dilation (OSD) technique with three other dilation techniques namely telescopic Alken, fascial Amplatz and balloon dilation (BD) in terms of safety efficacy and cost effectiven...

Clinical Trials [2300 Associated Clinical Trials listed on BioPortfolio]

Follow-up of Endovascular Aneurysm Treatment - The FEAT Trial

After endovascular abdominal aortic aneurysm repair, life-long follow-up is needed to monitor the effectiveness of exclusion of the aneurysm sac from blood flow. For this reason, aneurysm ...

CLARYS: CLinical Assessment of WEB® Device in Ruptured aneurYSms

An observational non-randomized, multi-center, prospective assessment of the clinical utility of the WEB Aneurysm Embolization System in subjects with ruptured intracranial aneurysms deeme...

Safety and Efficacy of Neuroform3TM for Intracranial Aneurysm Treatment

This is a prospective observational registry, multicenter, with consecutive intent to treat to get safety and efficacy data on Neuroform3TM stent. The objectives of this study are: ...

Aneurysm Wall Histology Registry

The purpose of this prospective registry is to determine if patients harboring intracranial aneurysms have any predictive markers between aneurysm wall tissue, cerebrospinal fluid and bloo...

Dutch Randomised Endovascular Aneurysm Management (DREAM-) Trial

The purpose of this trial is to assess whether the new endovascular repair technique of the abdominal aortic aneurysm (AAA) is an adequate substitute of the conventional AAA repair.

Medical and Biotech [MESH] Definitions

Aneurysm caused by a tear in the TUNICA INTIMA of a blood vessel leading to interstitial HEMORRHAGE, and splitting (dissecting) of the vessel wall, often involving the AORTA. Dissection between the intima and media causes luminal occlusion. Dissection at the media, or between the media and the outer adventitia causes aneurismal dilation.

Aneurysm due to growth of microorganisms in the arterial wall, or infection arising within preexisting arteriosclerotic aneurysms.

Not an aneurysm but a well-defined collection of blood and CONNECTIVE TISSUE outside the wall of a blood vessel or the heart. It is the containment of a ruptured blood vessel or heart, such as sealing a rupture of the left ventricle. False aneurysm is formed by organized THROMBUS and HEMATOMA in surrounding tissue.

Postoperative hemorrhage from an endovascular AORTIC ANEURYSM repaired with endoluminal placement of stent grafts (BLOOD VESSEL PROSTHESIS IMPLANTATION). It is associated with pressurization, expansion, and eventual rupture of the aneurysm.

Systematic identification of a population's needs or the assessment of individuals to determine the proper level of services needed.

Quick Search

DeepDyve research library

Relevant Topic

Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...