Magnetic resonance angiography or digital subtraction catheter angiography for follow-up of coiled aneurysms: Do we need both?

Lane, Annah, Vivian, Philip and Coulthard, Alan (2015) Magnetic resonance angiography or digital subtraction catheter angiography for follow-up of coiled aneurysms: Do we need both?. Journal of Medical Imaging and Radiation Oncology, 59 2: 163-169. doi:10.1111/1754-9485.12288


Author Lane, Annah
Vivian, Philip
Coulthard, Alan
Title Magnetic resonance angiography or digital subtraction catheter angiography for follow-up of coiled aneurysms: Do we need both?
Journal name Journal of Medical Imaging and Radiation Oncology   Check publisher's open access policy
ISSN 1754-9485
1754-9477
Publication date 2015-04
Year available 2015
Sub-type Article (original research)
DOI 10.1111/1754-9485.12288
Volume 59
Issue 2
Start page 163
End page 169
Total pages 7
Place of publication Richmond, Australia
Publisher Wiley-Blackwell Publishing Asia
Collection year 2016
Language eng
Formatted abstract
Introduction

Endovascular treatment of intracranial aneurysms is now common. Digital subtraction catheter angiography (DSA) is the gold standard for imaging follow-up of coiled intracranial aneurysms; however, it is an invasive procedure with a risk of complications. Time-of-flight magnetic resonance angiography (MRA) is an alternative non-invasive imaging method. In a previous study, we found that MRA at 1.5T was comparable to DSA for detection of aneurysm recurrence in this patient group and subsequently added MRA to the routine follow-up protocol. In the current study, we further compare MRA with DSA to determine whether MRA could safely replace DSA.

Methods

Patients who had endovascular coiling procedure for intracranial aneurysm from 10/2004 to 6/2010 were identified from our database. A radiologist and a radiology registrar compared MRA and DSA for all patients who received both modalities. DSA was considered as the reference technique. ‘Agreement’ or ‘disagreement’ between modalities was noted regarding absence or presence of aneurysm recurrence.

Results

The study group comprised 86 treatments of 80 aneurysms in 73 patients. There were 83/86 agreements between modalities and 3 disagreements. In one case, MRA identified a recurrence that was not seen on the corresponding DSA. In two cases, DSA showed a minor recurrence that was not seen on MRA.

Conclusion

Of the two MRA ‘misses’, neither would have resulted in different management. MRA is a safe and accurate modality for follow-up of coiled aneurysms and can replace DSA.
Keyword Angiography
Diagnostic imaging
Digital subtraction
Endovascular procedures
Intracranial aneurysm
Magnetic resonance angiography
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Medicine Publications
 
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