Journal ArticleDOI
Postoperative magnetic resonance imaging artifacts: Report of three cases
Reads0
Chats0
TLDR
Artifacts are occasionally encountered on magnetic resonance imaging after operation, due to minute metallic particles from neurosurgical instruments, and three illustrative case reports are presented.Abstract:
Artifacts are occasionally encountered on magnetic resonance imaging after operation. These may be due to minute metallic particles from neurosurgical instruments. Particles not detectable on plain x-ray films or computerized tomography scans may cause local change of magnetic resonance activity, resulting in a deceptive magnetic resonance appearance. Three illustrative case reports are presented.read more
Citations
More filters
Journal ArticleDOI
Long-term stability after multilevel cervical laminectomy for spinal cord tumor resection in von Hippel-Lindau disease.
Ashok R. Asthagiri,Gautam U. Mehta,John A. Butman,Martin Baggenstos,Edward H. Oldfield,Russell R. Lonser +5 more
TL;DR: Whereas patients with VHL disease will often require multiple laminectomies for cervical spinal cord hemangioblastoma resection, a limited number of patients will develop clinical instability, and longitudinal clinical and radiological evaluation may be used to determine which patients will require stabilization.
Journal ArticleDOI
Björk-Shiley convexoconcave valves: susceptibility artifacts at brain MR imaging and mechanical valve fractures.
Maarten J. van Gorp,Yolanda van der Graaf,Bas A.J.M. de Mol,Chris J.G. Bakker,Theo D. Witkamp,L. M. P. Ramos,Willem P.Th.M. Mali +6 more
TL;DR: Susceptibility artifacts at brain MR imaging are not restricted to patients with BSCC valves and can be seen on images obtained in patients with various other types of fractured and intact prosthetic heart valves.
Journal ArticleDOI
Magnetic Resonance Imaging Artifact Following Acoustic Neurofibroma Surgery : Case Report
TL;DR: It is suggested that care should be taken to prevent deposition of such debris in the operative field to prevent this complication.
Journal ArticleDOI
MRI-Findings After Uncomplicated Anterior Cervical Discectomy
TL;DR: A protrusion of the posterior ligament was present at the level of the operated disc on day 7 after surgery, which had resolved completely 6 months later and may mimic residual disc tissue or osteophytes early after surgery.
Journal ArticleDOI
One Case of Suspected Angiostenosis Revealed by MRA Following Carotid Endarterectomy Due to a Rare Cause
Yuji Endo,Naoki Sato,Hidekazu Takahashi,Mamoru Ota,Toshihito Ishikawa,Katsuhiro Endo,Kenichi Ebihara +6 more
TL;DR: A case in which magnetic resonance angiography following carotid endarterectomy revealed the appearance of angiostenosis due to an artifact of metallic powder, which was thought to have come from an old surgical instrument, is reported on.
References
More filters
Journal ArticleDOI
Susceptibility artefacts in NMR imaging.
Journal ArticleDOI
Artifacts in MR imaging after surgical intervention
TL;DR: Experiments demonstrated that surgical filling materials, such as bone cement and bone transplants are not the cause of the artifacts in magnetic resonance imaging, and it was able to show that short-term contact between a diamond drill and untempered operating instruments can cause abrasions and set free minute metallic fragments.
Journal ArticleDOI
Magnetic resonance imaging of postoperative patients with metallic implants
TL;DR: MRI scans in postsurgical patients with metallic implants in the abdomen or pelvis were free of the streak artifacts commonly encountered in computed tomography, suggesting that MRI may be a valuable technique in the postoperative assessment of patients with extensive abdominal surgical clips or metallic prostheses.