Traditional Posters: Interventional - ismrm

1861. Phase Only Cross-Correlation Tracking of a Passive Marker for MR-Guided
Interventions
Roger Jason Stafford 1 , Florian Maier 2 , Axel Joachim Krafft 2 , Michael Bock 2 , Axel
Winkel 3 , Kamran Ahrar 4
1 Department of Imaging Physics, The University of Texas M. D. Anderson Cancer Center , Houston, TX,
United States; 2 Department of Medical Physics in Radiology, Cancer Research Center Heidelberg (DKFZ),
Heidelberg, Germany; 3 Invivo GMBH, Schwerin, Germany; 4 Department of Diagnostic Radiology, The
University of Texas M. D. Anderson Cancer Center, Houston, TX, United States
Real-time MR-guidance of percutaneous procedures may benefit from methods for automatically adjusting the scan prescription to the
needle trajectory, as well as visual delineation of the trajectory, in real-time. In this work, the feasibility of using a phase only cross
correlation tracking algorithm for automated identification of a contrast filled needle sleeve with real-time adjustment of the scan
prescription for continuous delineation of the needle trajectory during manipulation was investigated in phantom and patients for MRguidance
of percutaneous procedures in a closed bore 1.5T clinical scanner.
1862. Targeted Magnetic Delivery of Cells with an MRI Scanner
Johannes Riegler 1,2 , Jack A. Wells 1 , Panagiotis Kyrtatos 1 , Anthony N. Price 1 , Mark F.
Lythgoe 1
1 Centre for Advanced Biomedical Imaging (CABI), Department of Medicine and Institute of Child Health,
University College London (UCL), London, United Kingdom; 2 Centre for Mathematics and Physics in the Life
Sciences and Experimental Biology (CoMPLEX), UCL, London, United Kingdom
Targeted delivery of cells or drugs is a technique that could increase the efficacy of medical treatments. One possibility for that is
using magnetic fields to drag labelled entities to the site of interest. MRI systems are particular interesing for this purpose due to their
ability to generate uniform magnetic field gradients across the whole body. We demonstrated the feasibility of steering magnetically
labelled cells to one exit tube of a bifurcation phantom by applying MR imaging gradients. This technique could potentially be used
for localised cell delivery in the vascular system.
1863. Simultaneous Wireless Fast Scan Cyclic Voltammetry and Amperometry with 3T
MRI
Kendall Lee 1 , Jonathan Bledsoe 1 , Kiaran McGee 2 , John Huston 2 , Chris Kimble 3 , Filippo
Agnesi, Kevin Bennet 3 , Charles Blaha 4 , Paul Garris 5
1 Department of Neurosurgery, Mayo Clinic, Rochester, MN, United States; 2 Department of Radiology, Mayo
Clinic, Rochester, MN, United States; 3 Department of Engineering, Mayo Clinic, Rochester, MN, United States;
4 Department of Psychology, University of Memphis; 5 Biological Sciences, Illinois State University
Electroanalytical techniques such as fast-scan cyclic votlammetry (FSCV) and constant-potential amperometry (CPA) have
revolutionized neuroscience research by supporting temporally, spatially, and chemically resolved neurotransmitter measurements in
the brain. CPA and FSCV were performed by a small, digital-telemetry device called a wireless instantaneous neurotransmitter
concentration system (WINCS) specifically developed for neurochemical monitoring. Test measurements were collected during
simultaneous 3T imaging using a fast spin echo sequence. WINCS dynamically recorded dopamine electrochemical signatures with
sub-second temporal resolution and with high fidelity. We demonstrate proof-of-concept for combining WINCS real-time
neurochemical measurements and 3T MRI that may offer simultaneous neurochemical monitoring during fMRI.
1864. Two Channel Interventional Cervix Coil for High Dose Rate Brachytherapy
Nikolay Vladimirovic Viskusenko 1 , Emre Kopanoglu 2 , John Jezioranski 3 , Warren Foltz 3 ,
Oktay Algin 4 , Ergin Atalar 2
1 UMRAM: National Magnetic Resonance Research Center , Bilkent Universty Elektrical and Elektronic
Engineering , Ankara , Turkey; 2 UMRAM: National Magnetic Resonance Research Center, Bilkent Universty
Elektrical and Elektronic Engineering, Ankara, Turkey; 3 University Health Network, Toronto, Canada;
4 Radiology, Ataturk Hospital, Ankara, Turkey
Determination of the diseased tissue region is very crucial for brachytherapy treatment. In this study, we propose a new 2-channel coil
structure that is embedded on a commercially available HDRT applicator. After MRI imaging of the cervix, brachytherapy procedure
can be carried out as normal without moving the applicator, which is essential for the correctness of radiation dose calculations. Invivo
animal experiments have been conducted and good quality images have been obtained.
1865. Esophagus Imaging with Intraluminal RF Coil for Integrated MR-Endoscope
System
Yuichiro Matsuoka 1 , Hayato Yoshinaka 1 , Susumu Aizawa 2 , Makiya Matsumoto 2 ,
Yoshinori Morita 1 , Hiromu Kutsumi 1 , Etsuko Kumamoto 3 , Kagayaki Kuroda 4,5 , Takeshi
Azuma 1
1 Graduate School of Medicine, Kobe University, Kobe, Hyogo, Japan; 2 Graduate School of Engineering, Kobe
University, Kobe, Hyogo, Japan; 3 Information Science and Technology Center, Kobe University, Kobe, Hyogo,
Japan; 4 Medical Device Development Center, Foundation for Biomedical Research and Innovation, Kobe,
Hyogo, Japan; 5 School of Information Science and Technology, Tokai Univesity, Hiratsuka, Japan
An endoscope shows an interior surface image of organ, but it has difficulty finding the information under tissue surface. To assist
endoscopy and endoscopic surgery by providing cross-sectional images, we have developed an integrated MR-endoscope system. An