Preoperative Evaluation of Patients with Hemifacial Spasm by Three-dimensional Time-of-Flight (3D-TOF) and Three-dimensional Constructive Interference in Steady State (3D-CISS) Sequence

2015 ◽  
Vol 26 (4) ◽  
pp. 431-438 ◽  
Author(s):  
J.-m. Jia ◽  
H. Guo ◽  
W.-j. Huo ◽  
S.-w. Hu ◽  
F. He ◽  
...  
Keyword(s):  
Steady State ◽  
Hemifacial Spasm ◽  
Preoperative Evaluation ◽  
Three Dimensional ◽  
Time Of Flight ◽  
Constructive Interference ◽  
Ciss Sequence

scholarly journals Evaluation of syringomyelia with three-dimensional constructive interference in a steady state (CISS) sequence

2000 ◽  
Vol 11 (2) ◽  
pp. 120-126 ◽  
Author(s):  
Toshinori Hirai ◽  
Yukunori Korogi ◽  
Yoshinori Shigematsu ◽  
Takeshi Sugahara ◽  
Mutsumasa Takahashi ◽  
...  
Keyword(s):  
Steady State ◽  
Three Dimensional ◽  
Constructive Interference ◽  
Ciss Sequence

Three-dimensional constructive interference in steady-state magnetic resonance imaging in syringomyelia: advantages over conventional imaging

2008 ◽  
Vol 8 (5) ◽  
pp. 429-435 ◽  
Author(s):  
Florian Roser ◽  
Florian H. Ebner ◽  
Søren Danz ◽  
Felix Riether ◽  
Rainer Ritz ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Steady State ◽  
Magnetic Resonance ◽  
Mr Imaging ◽  
Preoperative Evaluation ◽  
Motion Artifacts ◽  
Csf Flow ◽  
Constructive Interference ◽  
Detection Rates ◽  
Mr Sequences

Object Neuroradiology has become indispensable in detecting the pathophysiology in syringomyelia. Constructive interference in steady-state (CISS) magnetic resonance (MR) imaging can provide superior contrast at the sub-arachnoid tissue borders. As this region is critical in preoperative evaluation, the authors hypothesized that CISS imaging would provide superior assessment of syrinx pathology and surgical planning. Methods Based on records collected from a database of 130 patients with syringomyelia treated at the authors' institution, 59 patients were prospectively evaluated with complete neuroradiological examinations. In addition to routine acquisitions with FLAIR, T1- and T2-weighted, and contrast-enhanced MR imaging series, the authors obtained sagittal cardiac-gated sequences to visualize cerebrospinal fluid (CSF) pulsations and axial 3D CISS MR sequences to detect focal arachnoid webs. Statistical qualitative and quantitative evaluations of spinal cord/CSF contrast, spinal cord/CSF delineation, motion artifacts, and artifacts induced by pulsatile CSF flow were performed. Results The 3D CISS MR sequences demonstrated a contrast-to-noise ratio significantly better than any other routine imaging sequence (p < 0.001). Moreover, 3D CISS imaging can detect more subarachnoid webs and cavitations in the syrinx than T2-weighted MR imaging with less flow-void artifact. The limitation of 3D CISS imaging is a susceptibility to motion artifacts that can cause reduced spatial resolution. Lengthy acquisition times for axial segments can be reduced with multiplanar reconstruction of 3D CISS–generated sagittal images. Conclusions Constructive interference in steady-state imaging is the MR sequence of choice in the preoperative evaluation of syringomyelia, allowing significantly higher detection rates of focal subarachnoid webs, whereas standard T2-weighted MR imaging shows turbulent CSF flow voids. Constructive interference in steady-state MR imaging enables the neurosurgeon to accurately identify cases requiring decompression for obstructed CSF. Motion artifacts can be eliminated with technical variations.

Imaging of the normal pontine cisternal segment of the abducens nerve, using three-dimensional constructive interference in the steady state MRI

1999 ◽  
Vol 41 (5) ◽  
pp. 384-386 ◽  
Author(s):  
M. Lemmerling ◽  
G. De Praeter ◽  
K. Mortelé ◽  
S. Vyt ◽  
B. Vanzieleghem ◽  
...  
Keyword(s):  
Steady State ◽  
Three Dimensional ◽  
Abducens Nerve ◽  
Constructive Interference

scholarly journals Comparison of Constructive Interference in Steady-State and T1-Weighted MRI Sequence at Detecting Pituitary Adenomas in Cushing's Disease Patients

2018 ◽  
Vol 79 (06) ◽  
pp. 593-598 ◽  
Author(s):  
Min Lang ◽  
Ghaith Habboub ◽  
Doksu Moon ◽  
Abin Bandyopadhyay ◽  
Danilo Silva ◽  
...  
Keyword(s):  
Steady State ◽  
Pituitary Adenoma ◽  
Cushing’S Disease ◽  
Pituitary Adenomas ◽  
Cushing's Disease ◽  
Breath Hold ◽  
Mri Imaging ◽  
Constructive Interference ◽  
Ciss Sequence ◽  
Magnetic Resonance Imaging Mri

Background T1-weighted magnetic resonance imaging (MRI) remains the standard pituitary imaging sequence. However, up to 50% of pituitary adenomas are missed with standard imaging in Cushing's disease (CD) patients. Utility of other imaging sequences needs be explored. Objective To compare a T2-gradient echo sequence, constructive interference in steady state (CISS), with a contrast-enhanced (CE) T1-weighted sequence, volume-interpolated breath-hold examination (VIBE), in the detection of pituitary adenomas in CD patients. Design Retrospective analysis of CD patients who underwent endoscopic transsphenoidal pituitary adenomectomy at our institution. Patients and Measurement Twelve patients were included in the study. Two neuroradiologists, who were blinded to the patients' clinical and surgical findings, independently reviewed the CE-VIBE and CISS images. Localization of pituitary adenoma from imaging was compared with intraoperative localization. Results The averaged sensitivity of detecting pituitary adenoma in CD patients was not significantly different between CE-VIBE sequence (63%) and CISS sequence (54%). The positive predictive value was 75% (Observer A) and 100% (Observer B) with CE-VIBE sequence, and 64% (Observer A) and 100% (Observer B) with CISS sequence. In two patients, pituitary adenoma was easily localized with CISS sequence but hard to detect with CE-VIBE sequence. In two other patients, the adenoma was much better delineated on CE-VIBE sequence. Conclusion In our series, the addition of CISS sequence to T1-weighted MRI imaging protocols improved the detection of pituitary adenomas in CD patients. CISS sequence may be a useful adjunct to T1-weighted pituitary MRI protocols and an appropriate alternative for patients with gadolinium contraindications.

scholarly journals Liliequist Membrane: Three-dimensional Constructive Interference in Steady State MR Imaging

Radiology ◽  
2003 ◽  
Vol 229 (2) ◽  
pp. 360-365 ◽  
Author(s):  
Yasutaka Fushimi ◽  
Yukio Miki ◽  
Tetsuya Ueba ◽  
Mitsunori Kanagaki ◽  
Takahiro Takahashi ◽  
...  
Keyword(s):  
Steady State ◽  
Mr Imaging ◽  
Three Dimensional ◽  
Constructive Interference
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