Neuroradiology

, Volume 57, Issue 8, pp 775–782

Evaluation of the degree of arteriovenous shunting in intracranial arteriovenous malformations using pseudo-continuous arterial spin labeling magnetic resonance imaging

  • Leonard Sunwoo
  • Chul-Ho Sohn
  • Jong Young Lee
  • Kyung Sik Yi
  • Tae Jin Yun
  • Seung Hong Choi
  • Young Dae Cho
  • Ji-hoon Kim
  • Sun-Won Park
  • Moon Hee Han
  • Sun Ha Paek
  • Yong Hwy Kim
  • Jin Wook Kim
  • Hyun-Tai Chung
  • Dong Gyu Kim
Diagnostic Neuroradiology

DOI: 10.1007/s00234-015-1533-5

Cite this article as:
Sunwoo, L., Sohn, CH., Lee, J.Y. et al. Neuroradiology (2015) 57: 775. doi:10.1007/s00234-015-1533-5

Abstract

Introduction

Intracranial arteriovenous malformations (AVMs) display venous signals on arterial spin labeling (ASL) magnetic resonance (MR) imaging due to the presence of arteriovenous shunting. Our aim was to quantitatively correlate AVM signal intensity on ASL with the degree of arteriovenous shunting estimated on digital subtraction angiography (DSA) in AVMs.

Methods

MR imaging including pseudo-continuous ASL at 3 T and DSA were obtained on the same day in 40 patients with intracranial AVMs. Two reviewers assessed the nidus and venous signal intensities on ASL images to determine the presence of arteriovenous shunting. Interobserver agreement on ASL between the reviewers was determined. ASL signal intensity of the AVM lesion was correlated with AVM size and the time difference between normal and AVM venous transit times measured from the DSA images.

Results

Interobserver agreement between two reviewers for nidus and venous signal intensities was excellent (κ = 0.80 and 1.0, respectively). Interobserver agreement regarding the presence of arteriovenous shunting was perfect (κ = 1.0). AVM signal intensity showed a positive relationship with the time difference between normal and AVM venous transit times (r = 0.638, P < 0.001). AVM signal intensity also demonstrated a positive relationship with AVM size (r = 0.561, P < 0.001).

Conclusion

AVM signal intensity on ASL in patients with AVM correlates well with the degree of early vein opacification on DSA, which corresponds to the degree of arteriovenous shunting.

Keywords

Arterial spin labeling (ASL) Arteriovenous malformation (AVM) Arteriovenous shunting Venous signal intensity 

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Leonard Sunwoo
    • 1
    • 2
  • Chul-Ho Sohn
    • 2
    • 3
  • Jong Young Lee
    • 4
  • Kyung Sik Yi
    • 5
  • Tae Jin Yun
    • 2
    • 3
  • Seung Hong Choi
    • 2
    • 3
  • Young Dae Cho
    • 2
    • 3
  • Ji-hoon Kim
    • 2
    • 3
  • Sun-Won Park
    • 1
    • 2
  • Moon Hee Han
    • 2
    • 3
  • Sun Ha Paek
    • 6
  • Yong Hwy Kim
    • 6
  • Jin Wook Kim
    • 6
  • Hyun-Tai Chung
    • 6
  • Dong Gyu Kim
    • 6
  1. 1.Department of RadiologySeoul Metropolitan Government - Seoul National University Boramae Medical CenterSeoulKorea
  2. 2.Department of RadiologySeoul National University College of MedicineSeoulKorea
  3. 3.Department of RadiologySeoul National University HospitalSeoulKorea
  4. 4.Department of NeurosurgeryKangdong Sacred Heart HospitalSeoulKorea
  5. 5.Department of RadiologyChungbuk National University HospitalCheongjuKorea
  6. 6.Department of NeurosurgerySeoul National University HospitalSeoulKorea