Holocord Hydrosyringomyelia with Terminal Myelocystocele Revealed by Constructive Interference in Steady-State MR Imaging

2008 ◽  
Vol 44 (6) ◽  
pp. 509-512 ◽  
Author(s):  
Kimiaki Hashiguchi ◽  
Takato Morioka ◽  
Kazuhiro Samura ◽  
Fumiaki Yoshida ◽  
Yasushi Miyagi ◽  
...  
Keyword(s):  
Steady State ◽  
Mr Imaging ◽  
Constructive Interference ◽  
Terminal Myelocystocele

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.

Feasibility and limitation of constructive interference in steady-state (CISS) MR imaging in neonates with lumbosacral myeloschisis

2007 ◽  
Vol 49 (7) ◽  
pp. 579-585 ◽  
Author(s):  
Kimiaki Hashiguchi ◽  
Takato Morioka ◽  
Fumiaki Yoshida ◽  
Yasushi Miyagi ◽  
Futoshi Mihara ◽  
...  
Keyword(s):  
Steady State ◽  
Mr Imaging ◽  
Constructive Interference

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

Image-guided microradiosurgery for skull base tumors: advantages of using gadolinium-enhanced constructive interference in steady-state imaging

2006 ◽  
Vol 105 (Supplement) ◽  
pp. 12-17 ◽  
Author(s):  
Motohiro Hayashi ◽  
Taku Ochiai ◽  
Kotaro Nakaya ◽  
Mikhail Chernov ◽  
Noriko Tamura ◽  
...  
Keyword(s):  
Steady State ◽  
Brain Tumors ◽  
Mr Imaging ◽  
Skull Base ◽  
Optimal Dose ◽  
Constructive Interference ◽  
Image Guided ◽  
Imaging Sequence ◽  
Dose Planning ◽  
Adjacent Structures

✓Gamma Knife surgery (GKS) is image-guided surgery for brain tumors. Precise tumor visualization is needed in dose planning to control tumor progression. The surrounding vital structures must also be clearly defined to allow the preservation of their function. A special magnetic resonance (MR) imaging sequence was chosen for use with GKS to treat skull base and suprasellar tumors.Gadolinium-enhanced 0.5-mm constructive interference in steady-state (CISS) slices were obtained in skull base and suprasellar tumors. Each structure that was adjacent to the tumor could be visualized more clearly by using this imaging technique because the tumor became transparent even though there was no change in the appearance of the surrounding structures after injection of Gd. Use of this technique in acoustic tumors allowed the seventh and eighth cranial nerves to be visualized in the cisternal and intrameatal portions; both of which were distinguishable from the tumor. Suprasellar tumor could be distinguished from the adjacent optic pathway. The use of Gd-enhanced CISS imaging allowed for optimal dose planning with very high conformity in every tumor. Achieving this high conformity allowed the preservation of adjacent structures and their functions.Establishing optimal dose planning in brain tumors is very important to overcome the problem of producing new neurological deficits in patients who may already be suffering disease-related deficits. The use of this special CISS MR imaging sequence may help accomplish this goal.

Dynamic morphological changes in lumbosacral lipoma during the first months of life revealed by constructive interference in steady-state (CISS) MR imaging

2006 ◽  
Vol 23 (4) ◽  
pp. 415-420 ◽  
Author(s):  
Takato Morioka ◽  
Kimiaki Hashiguchi ◽  
Fumiaki Yoshida ◽  
Shinji Nagata ◽  
Yasushi Miyagi ◽  
...  
Keyword(s):  
Steady State ◽  
Mr Imaging ◽  
Morphological Changes ◽  
Constructive Interference ◽  
Lumbosacral Lipoma

Colorectal Carcinoma: In Vitro Evaluation with High-Spatial-Resolution 3D Constructive Interference in Steady-State MR Imaging

Radiology ◽  
2008 ◽  
Vol 246 (2) ◽  
pp. 444-453 ◽  
Author(s):  
Ichiro Yamada ◽  
Satoshi Okabe ◽  
Masayuki Enomoto ◽  
Kenichi Sugihara ◽  
Norio Yoshino ◽  
...  
Keyword(s):  
Steady State ◽  
Colorectal Carcinoma ◽  
Mr Imaging ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Constructive Interference ◽  
In Vitro Evaluation
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