Follow-up of true visceral artery aneurysm after coil embolization by three-dimensional contrast-enhanced MR angiography

Background and purposeFollow-up of intracranial aneurysms treated by flow diverter with MRI is complicated by imaging artifacts produced by these devices. This study compares the diagnostic accuracy of three-dimensional time-of-flight MR angiography (3D-TOF-MRA) and contrast-enhanced MRA (CE-MRA) at 3 T for the evaluation of aneurysm occlusion and parent artery patency after flow diversion treatment, with digital subtraction angiography (DSA) as the gold standard.Materials and methodsPatients treated with flow diverters between January 2009 and January 2013 followed by MRA at 3 T (3D-TOF-MRA and CE-MRA) and DSA within a 48 h period were included in a prospective single-center study. Aneurysm occlusion was assessed with full and simplified Montreal scales and parent artery patency with three-grade and two-grade scales.ResultsTwenty-two patients harboring 23 treated aneurysms were included. Interobserver agreement using simplified scales for occlusion (Montreal) and parent artery patency were higher for DSA (0.88 and 0.61) and CE-MRA (0.74 and 0.55) than for 3D-TOF-MRA (0.51 and 0.02). Intermodality agreement was higher for CE-MRA (0.88 and 0.32) than for 3D-TOF-MRA (0.59 and 0.11). CE-MRA yielded better accuracy than 3D-TOF-MRA for aneurysm remnant detection (sensitivity 83% vs 50%; specificity 100% vs 100%) and for the status of the parent artery (specificity 63% vs 32%; sensitivity 100% vs 100%).ConclusionsAt 3 T, CE-MRA is superior to 3D-TOF-MRA for the evaluation of aneurysm occlusion and parent artery patency after flow diversion treatment. However, intraluminal evaluation remains difficult with MRA regardless of the sequence used.

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Hepatic artery aneurysm: incidental diagnosis with abdominal ultrasonography and treatment by coil embolization

Jornal Vascular Brasileiro ◽

10.1590/s1677-54492012000300011 ◽

2012 ◽

Vol 11 (3) ◽

pp. 232-235

Author(s):

Luis Jesuino de Oliveira Andrade ◽

Antonio Carlos Botelho da Silva ◽

Larissa Santos França ◽

Luciana Santos França ◽

José Rebouças de Souza

Keyword(s):

Magnetic Resonance Imaging ◽

Hepatic Artery ◽

Coil Embolization ◽

Three Dimensional ◽

Artery Aneurysm ◽

Resonance Imaging ◽

Hepatic Artery Aneurysm ◽

Abdominal Ultrasonography ◽

Incidental Diagnosis ◽

Contrast Enhanced

Hepatic artery aneurysm (HAA) was first reported at autopsy in 1809, represents one fifth of visceral aneurysms and the mortality from spontaneous rupture is high in most of cases. We are reporting a case of an asymptomatic 48-year-old woman with an extrahepatic HAA, diagnosed initially and incidentally with abdominal ultrasonography, confirmed by a three-dimensional contrast-enhanced magnetic resonance imaging and angiography. Endovascular treatment was considered feasible and was successfully treated with coil embolization.

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Determination of filling volumes in HydroCoil-treated aneurysms by using three-dimensional computerized tomography angiography

Neurosurgical FOCUS ◽

10.3171/foc.2005.18.2.6 ◽

2005 ◽

Vol 18 (2) ◽

pp. 1-5 ◽

Cited By ~ 11

Author(s):

Eric M. Deshaies ◽

Sandeep Bagla ◽

Celso Agner ◽

Alan S. Boulos

Keyword(s):

Computerized Tomography ◽

Coil Embolization ◽

Intracranial Aneurysms ◽

Three Dimensional ◽

Artery Aneurysm ◽

Anterior Communicating Artery ◽

Filling Volume ◽

Computerized Tomography Angiography ◽

Surgical Clip

Object Coil embolization of aneurysms has been shown to be as safe and effective as surgical clip ligation, but has a higher recurrence rate. Advances in coil technology aim to reduce aneurysm recurrence by coating the devices with biological substances. An example of this is MicroVention's HydroCoil, which is a platinum coil coated with hydro-gel that improves filling volumes by swelling when it contacts blood. The goal of this study was to determine whether this new coil type significantly reduced or prevented recurrences of aneurysms. Methods The authors used three-dimensional computerized tomography angiography to determine aneurysm volumes accurately in 12 patients prior to coil embolization. The percentage filling volume was subsequently calculated for each aneurysm after treatment with HydroCoils and the immediate and 6-month follow-up angiographically confirmed occlusions were evaluated. The data demonstrated that both anterior and posterior intracranial aneurysms with diameters of 3 to 25 mm and volumes of 0.03 to 4.8 ml had filling volumes of 0.02 to 1.36 ml, resulting in filling volumes from 23% in a giant ophthalmic artery aneurysm to 80% in a small anterior communicating artery aneurysm. All of the aneurysms except for the giant one demonstrated stable occlusion on angiographic studies obtained at the 6-month follow-up review. Conclusions HydroCoil embolization of intracranial aneurysms is safe and effective for small, large, and very large aneurysms. The percentage filling volume is greater than that reported for bare platinum coils in every case except the giant aneurysm. Nevertheless, angiographically confirmed occlusion is not directly related to percentage filling volume, but rather to the ability to occlude the aneurysm neck.

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Usefulness of Non–Contrast-Enhanced MR Angiography Using a Silent Scan for Follow-Up after Y-Configuration Stent-Assisted Coil Embolization for Basilar Tip Aneurysms

American Journal of Neuroradiology ◽

10.3174/ajnr.a5033 ◽

2016 ◽

Vol 38 (3) ◽

pp. 577-581 ◽

Cited By ~ 20

Author(s):

N. Takano ◽

M. Suzuki ◽

R. Irie ◽

M. Yamamoto ◽

N. Hamasaki ◽

...

Keyword(s):

Coil Embolization ◽

Mr Angiography ◽

Contrast Enhanced

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Time-resolved magnetic resonance angiography as a follow-up method for visceral artery aneurysm treated with coil-embolisation

Polish Journal of Radiology ◽

10.5114/pjr.2018.75622 ◽

2018 ◽

Vol 83 ◽

pp. 137-142

Author(s):

Tatsuya Kawai ◽

Masashi Shimohira ◽

Kazushi Suzuki ◽

Kengo Ohta ◽

Kenichiro Kurosaka ◽

...

Keyword(s):

Magnetic Resonance ◽

Magnetic Resonance Angiography ◽

Artery Aneurysm ◽

Visceral Artery ◽

Visceral Artery Aneurysm ◽

Coil Embolisation ◽

Time Resolved

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Partial Fat-saturated Contrast-enhanced Three-dimensional MR Angiography Compared with Non-Fat-saturated and Conventional Fat-saturated MR Angiography

Radiology ◽

10.1148/radiology.216.1.r00jl04298 ◽

2000 ◽

Vol 216 (1) ◽

pp. 298-303 ◽

Cited By ~ 13

Author(s):

Paul R. Hilfiker ◽

Robert J. Herfkens ◽

Steve G. Heiss ◽

Marcus T. Alley ◽

Dominik Fleischmann ◽

...

Keyword(s):

Mr Angiography ◽

Three Dimensional ◽

Contrast Enhanced

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A comparison between the CS-TOF and the CTA/DSA for WEB device management

Interventional Neuroradiology ◽

10.1177/15910199211014708 ◽

2021 ◽

pp. 159101992110147

Author(s):

Oktay Algin ◽

Gokhan Yuce ◽

Ural Koc ◽

Gıyas Ayberk

Keyword(s):

Mr Angiography ◽

Three Dimensional ◽

Morphological Parameters ◽

Perfect Agreement ◽

Device Management ◽

Web Device ◽

Sensing Time ◽

The Web

Purpose There is no study on the role of three-dimensional compressed sensing time of flight MR angiography (3D-CS-TOF) in the management of the WEB device. We evaluated the efficacy of 3-tesla 3D-CS-TOF for the management and follow-up of the WEB device implantations. Materials and methods Seventy-three aneurysms of 69 patients treated with the WEB device were retrospectively examined. Morphological parameters and embolization results of the aneurysms were assessed and compared on 3D-CS-TOF, CTA, and DSA images. Results Occluded, neck remnant, and recurrent aneurysms were observed in 61 (83.6%), 7 (9.6%), and 5 (6.8%) aneurysms, respectively. Inter- and intra-reader agreement values related to aneurysm size measurements were perfect. Aneurysms size, age, and proximal vessel tortuosity were negatively correlated with the visibility of the aneurysms and parent vessels on 3D-CS-TOF images (p = 0.043; p = 0.032; p < 0.001, respectively). Subarachnoid hemorrhage and age are associated with 3D-CS-TOF artifacts (p = 0.031; p = 0.005, respectively). 3D-CS-TOF findings are in perfect agreement with DSA or CT angiography (CTA) results (p < 0.001). Conclusion According to our results, 3D-CS-TOF can be an easy, fast, and reliable alternative for the management or follow-up of WEB assisted embolization.

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