Noninvasive dynamic magnetic resonance angiography with Time-Resolved Imaging of Contrast KineticS (TRICKS) in the evaluation of orbital vascular lesions.
OBJECTIVE
To evaluate the clinical utility of time-resolved contrast-enhanced magnetic resonance angiography (MRA) in the evaluation of vascular orbital tumors.


METHODS
Retrospective medical record review of patients with vascular orbital lesions imaged with Time-Resolved Imaging of Contrast KineticS (TRICKS; GE Healthcare [Chalfont St Giles, England]) MRA, a noninvasive dynamic imaging modality.


RESULTS
Five patients with orbital vascular tumors were evaluated using TRICKS MRA. These included 1 patient with a cavernous hemangioma, 2 patients with orbital varices, 1 patient with an orbitocutaneous arteriovenous malformation, and 1 patient who had a solitary fibrous tumor with features of a hemangiopericytoma. In 2 patients, diagnoses were altered as a result of TRICKS MRA. In addition, a young patient with a large orbitocutaneous arteriovenous malformation involving the ophthalmic artery was followed perioperatively and noninvasively using TRICKS MRA, which produced exquisite images and added substantial value in the care of these patients.


CONCLUSIONS
Dynamic MRA in the form of TRICKS is a newly available imaging modality with great potential for improving the evaluation and management of patients with complex orbital tumors.
Kahana
Alon
A
Department of Ophthalmology and Visual Sciences, University of Michigan, Kellogg Eye Center, 1000 Walls St, Ann Arbor, MI 48105, USA. akahana@med.umich.edu
Lucarelli
Mark J
MJ
Grayev
Allison M
AM
Van Buren
Jeremy J
JJ
Burkat
Cat N
CN
Gentry
Lindell R
LR
D000328:Adult; D000368:Aged; D001165:Arteriovenous Malformations / Q000175:diagnosis*; D001783:Blood Flow Velocity; D002648:Child; D005260:Female; D006392:Hemangioma, Cavernous / Q000175:diagnosis*; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000098:blood supply*; D009918:Orbital Neoplasms / Q000175:diagnosis*; D012039:Regional Blood Flow; D012189:Retrospective Studies; D054364:Solitary Fibrous Tumors / Q000175:diagnosis*; D013997:Time Factors; D014648:Varicose Veins / Q000175:diagnosis*