Evaluation of a MR-compatible CZT detector

Philippe Despiés, Enrique Izaguirre, Siyuan Liu, Leonard J. Cirignano, Hadong Kim, Michael F. Wendland, Kanai S. Shah, Bruce H. Hasegawa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

Multimodality imaging is increasingly relevant in many clinical and preclinical fields. PET/CT and SPECT/CT studies, for instance, generally provide more information than the same imaging modalities taken separately. This synergistic effect, obtained by combining anatomical and functional information, also would be desirable for magnetic resonance imaging (MRI), a nonionizing modality that provides excellent spatial resolution and soft-tissue contrast. The development of a PET/MRI or SPECT/MRI system however represents a significant technological challenge, in part due to the effect of the strong MRI magnetic field on the PET/SPECT detection subsystem. This environment complicates the use of photomultiplier tubes (PMTs) and rather favors solid-state detection technologies. As a proof of principle, we have studied the behavior of a MR-compatible CdZnTe (CZT) detector, a room-temperature semiconductor already used in some SPECT systems. The detector, made from a single 5×5×2 mm3 CZT crystal, was coupled to a Cremat CR-110 preamplifier with nonmagnetic connectors. The whole detector/preamplifier assembly was tested within a static magnetic field while the radiation detector electronics remained outside the magnet room. We measured the energy resolution of the detector from 57Co spectra both inside and outside the magnet. The results suggest that the static magnetic field does not affect the energy resolution of the CZT detector, making it a good candidate for the development of a MRI device combining a nuclear medicine imaging subsystem.

Original languageEnglish (US)
Title of host publication2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
Pages4324-4326
Number of pages3
Volume6
DOIs
StatePublished - 2007
Externally publishedYes
Event2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC - Honolulu, HI, United States
Duration: Oct 27 2007Nov 3 2007

Other

Other2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC
CountryUnited States
CityHonolulu, HI
Period10/27/0711/3/07

Fingerprint

magnetic resonance
Magnetic Resonance Imaging
Magnetic Fields
Single-Photon Emission-Computed Tomography
evaluation
detectors
Magnets
preamplifiers
magnets
magnetic fields
Semiconductors
nuclear medicine
connectors
radiation detectors
Nuclear Medicine
photomultiplier tubes
rooms
assembly
spatial resolution
CdZnTe

All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Radiology Nuclear Medicine and imaging

Cite this

Despiés, P., Izaguirre, E., Liu, S., Cirignano, L. J., Kim, H., Wendland, M. F., ... Hasegawa, B. H. (2007). Evaluation of a MR-compatible CZT detector. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC (Vol. 6, pp. 4324-4326). [4437072] https://doi.org/10.1109/NSSMIC.2007.4437072

Evaluation of a MR-compatible CZT detector. / Despiés, Philippe; Izaguirre, Enrique; Liu, Siyuan; Cirignano, Leonard J.; Kim, Hadong; Wendland, Michael F.; Shah, Kanai S.; Hasegawa, Bruce H.

2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. Vol. 6 2007. p. 4324-4326 4437072.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Despiés, P, Izaguirre, E, Liu, S, Cirignano, LJ, Kim, H, Wendland, MF, Shah, KS & Hasegawa, BH 2007, Evaluation of a MR-compatible CZT detector. in 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. vol. 6, 4437072, pp. 4324-4326, 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC, Honolulu, HI, United States, 10/27/07. https://doi.org/10.1109/NSSMIC.2007.4437072
Despiés P, Izaguirre E, Liu S, Cirignano LJ, Kim H, Wendland MF et al. Evaluation of a MR-compatible CZT detector. In 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. Vol. 6. 2007. p. 4324-4326. 4437072 https://doi.org/10.1109/NSSMIC.2007.4437072
Despiés, Philippe ; Izaguirre, Enrique ; Liu, Siyuan ; Cirignano, Leonard J. ; Kim, Hadong ; Wendland, Michael F. ; Shah, Kanai S. ; Hasegawa, Bruce H. / Evaluation of a MR-compatible CZT detector. 2007 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS-MIC. Vol. 6 2007. pp. 4324-4326
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