TRADITIONAL POSTER - ismrm

Poster Sessions
hippocampus and some volumetric reductions in the contiguous WM. These findings suggest that both regional GM atrophy and WM disconnection might,
at least parially, explain cognitive deficits detectable in patients with OSAS.
2418. Oral Tongue Squamous Cell Carcinoma Evaluated by PROPELLER and Echoplanar Diffusion-
Weighted Imaging
Chun-Jung Juan 1 , Hing-Chiu Chang 2,3 , Cheng-Yu Chen 1 , Hung-Wen Kao 1 , Chun-Jen Hsueh 1 , Chih-Wei
Wang 1 , Cheng-Chieh Cheng 1,3 , Su-Chin Chiu 1,3 , Hsiao-Wen Chung 1,3 , Guo-Shu Huang 1
1 Department of Radiology, Tri-Service General Hospital, Taipei, Taiwan; 2 Applied Science Laboratory, GE Healthcare Taiwan,
Taipei, Taiwan; 3 Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, Taiwan
In this study we aimed to verify the imaging quality of fast spin-echo PROPELLER diffusion weighted imaging (FSE-PROP-DWI) and echoplanar DWI
(EP-DWI) in oral cavity and to investigate the apparent diffusion coefficient (ADC) of pathological proven oral tongue squamous cell carcinoma (OTSCC).
Our results show that FSE-PROP-DWI is superior to EP-DWI with less imaging distortion and is satisfactory for measurement of ADC of OTSCC.
2419. Improved Head and Neck Contrast Enhanced Imaging Using High Resolution Isotropic 3D T1
SPACE: A Feasibility Study
Magalie Viallon 1 , Karen Masterson 1 , Minerva Becker 1
1 Radiologie, Hopital Universitaire de Genève, Geneva, Switzerland
Post Gadolinium MR head and neck examinations remain challenging due to the need for a large anatomic coverage in minimum acquisition time. For
cranial nerves and skull base investigation, 3D acquisitions are very useful not only to better visualize and analyze the nerves but also to provide large head
and neck coverage of often extended or multi focal pathology. Until recently, 3D acquisitions implemented to image the head and neck area were based on
gradient echo imaging kernel (T1 3D Vibe FS, T1 MP-RAGE. Unfortunately, fast 3D T1w gradient echo imaging is limited by the presence of air-tissue
interfaces and inherent susceptibility artefacts. Nevertheless, to study the whole course of nerves and localize focal or global contrast enhancement, a fat
saturated spin-echo 3D T1 sequence seems more adequate. We investigate here the utility of 3D T1 FS Space (Sampling Perfection with Application
optimized Contrasts using different flip angle Evolutions) for head and neck imaging at 3T and its clinical relevance in various pathologies of this region.
2420. Tumor Metabolism and Perfusion in Head and Neck Squamous Cell Carcinoma: Pretreatment
Multimodality Imaging with 1H-MRS, DCE MRI and 18F-FDG PET: An Exploratory Study
Jacobus FA Jansen 1 , Heiko Schoder 1 , Nancy Lee 1 , Hilda Stambuk 1 , Ya Wang 1 , Matthew Fury 1 , Snehal
Patel 1 , David Pfister 1 , Jatin Shah 1 , Jason Koutcher 1 , Amita Shukla-Dave 1
1 MSKCC, NY, United States
The study aims to correlate pretreatment multimodality (MM) imaging data obtained with 1H-MRS, DCE-MRI and 18F-FDG PET in patients with head and
neck squamous cell carcinoma (HNSCC) with neck nodal metastases for more precise assessment of the tumor metabolism and perfusion. Additionally,
pretreatment MM imaging data was evaluated for its efficacy in prediction of short term response to treatment. In 29 HNSCC patients, Cho/W, Ktrans, ve,
kep, 18F-FDG SUV measures were correlated. It was found that pretreatment MM imaging is valuable for the precise assessment of tumor biology, and
maybe a predictive marker for short term response.
DTI Brain & Spine - Clinical Applications
Hall B Thursday 13:30-15:30
2421. MR Visualization of Ventral Thalamic Nuclei
Kei Yamada 1 , Kentaro Akazawa, Sachiko Yuen, Mariko Goto, Shigenori Matsushima, Akiko Takahata,
Tsunehiko Nishimura
1 Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
Ventrointermediate nucleus of the thalamus is located adjacent to and medial to the pyramidal tract and it can be identified on anisotropy maps of diffusion
tensor imaging as well as inversion recovery sequences.
2422. Distance Between Meyer's Loop Anterior Tip and Temporal Pole in Southern Chinese Measured with
Diffusion Tensor Tractography Using BrainLAB and Philips FiberTrak Software
Yi Xiang Wang 1 , X L. Zhu 2 , M Deng 1 , Y W. Siu 1 , C S. Leung 3 , Q Chan 4 , T M. Chan 2 , W S. Poon 2
1 Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin,
NT, Hong Kong; 2 Division of Neurosurgery, Department of Surgery, The Chinese University of Hong Kong, Prince of Wales
Hospital; 3 Jockey Club Centre for Osteoporosis Care and Control, The Chinese University of Hong Kong, Prince of Wales Hospital;
4 Philips Healthcare, Hong Kong SAR, China
Using Diffusion tensor tractography, the relationship of Meyer¡¯s loop to temporal lobe was investigated in 16 Southern Chinese subjects. Operator A is a
neurosurgeon and BrainLAB software (Feldkirchen, Germany) was used. Operator B is a radiologist and Philips FiberTrak Software (Best, The Netherlands)
was used. The results demonstrated a neurosurgeon and a radiologist using different DTT tools reached similar results on Meyer¡¯s loop to temporal pole
(ML¨CTP) distance, suggesting BrainLAB and Philips FiberTrack software are able to provide comparable results. ML¨CTP distance from southern Chinese
population was similar to literature data of Caucasian and Japanese population.