Paper
25 February 2009 Clinical utility of magnetic resonance thermal imaging (MRTI) for realtime guidance of deep hyperthermia
P. R. Stauffer, Oana I. Craciunescu, P. F. Maccarini, Cory Wyatt, K. Arunachalam, O. Arabe, V. Stakhursky, B. Soher, J. R. MacFall, Z. Li, William T. Joines, S. Rangarao, K. S. Cheng, S. K. Das, Carlos D. Martins, Cecil Charles, Mark W. Dewhirst, T. Wong, E. Jones M.D., Z. Vujaskovic M.D.
Author Affiliations +
Abstract
A critical need has emerged for volumetric thermometry to visualize 3D temperature distributions in real time during deep hyperthermia treatments used as an adjuvant to radiation or chemotherapy for cancer. For the current effort, magnetic resonance thermal imaging (MRTI) is used to measure 2D temperature rise distributions in four cross sections of large extremity soft tissue sarcomas during hyperthermia treatments. Novel hardware and software techniques are described which improve the signal to noise ratio of MR images, minimize motion artifact from circulating coupling fluids, and provide accurate high resolution volumetric thermal dosimetry. For the first 10 extremity sarcoma patients, the mean difference between MRTI region of interest and adjacent interstitial point measurements during the period of steady state temperature was 0.85°C. With 1min temporal resolution of measurements in four image planes, this noninvasive MRTI approach has demonstrated its utility for accurate monitoring and realtime steering of heat into tumors at depth in the body.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
P. R. Stauffer, Oana I. Craciunescu, P. F. Maccarini, Cory Wyatt, K. Arunachalam, O. Arabe, V. Stakhursky, B. Soher, J. R. MacFall, Z. Li, William T. Joines, S. Rangarao, K. S. Cheng, S. K. Das, Carlos D. Martins, Cecil Charles, Mark W. Dewhirst, T. Wong, E. Jones M.D., and Z. Vujaskovic M.D. "Clinical utility of magnetic resonance thermal imaging (MRTI) for realtime guidance of deep hyperthermia", Proc. SPIE 7181, Energy-based Treatment of Tissue and Assessment V, 71810I (25 February 2009); https://doi.org/10.1117/12.812188
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Cited by 19 scholarly publications.
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KEYWORDS
Tumors

Magnetic resonance imaging

Tissues

Temperature metrology

Antennas

Magnetism

Phased arrays

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