TY - GEN
T1 - A Hybrid Rotation-Translation (HRT) scan scheme for in vivo animal SPECT imaging on a stationary scanner
AU - Xia, Yan
AU - Ma, Tianyu
AU - Deng, Xiao
AU - Liu, Yaqiang
AU - Jin, Yongjie
AU - Murali, Srividya
AU - Yao, Rutao
PY - 2009
Y1 - 2009
N2 - We developed SPECT imaging capability on an animal PET scanner by placing a slit-slat collimator inside the PET detector gantry. To perform in vivo animal imaging with minimal gravity induced animal motion, we investigated the performance of hybrid rotation-translation (HRT) tomographic scan scheme in this paper. Three evaluation indices, i.e. sampling completeness (SC), sensitivity, and directional spatial resolution (DR), were designed and calculated throughout the field-of-view to assess the performance of the HRT and the conventional rotation-only scan scheme. The reconstructed image quality was evaluated through simulated and experimental studies. Ten HRT schemes with different rotation and translation combinations and the conventional rotation-only scheme were tested. General HRT schemes (containing both rotational and translational movements) have comparable sampling completeness (SC), comparable sensitivity and better spatial resolution (in terms of both DR and visual image quality), as compared to the conventional rotation-only scheme We concluded that HRT scan scheme enables in vivo animal SPECT imaging on the stationary scanner and has the advantage of improving image resolution.
AB - We developed SPECT imaging capability on an animal PET scanner by placing a slit-slat collimator inside the PET detector gantry. To perform in vivo animal imaging with minimal gravity induced animal motion, we investigated the performance of hybrid rotation-translation (HRT) tomographic scan scheme in this paper. Three evaluation indices, i.e. sampling completeness (SC), sensitivity, and directional spatial resolution (DR), were designed and calculated throughout the field-of-view to assess the performance of the HRT and the conventional rotation-only scan scheme. The reconstructed image quality was evaluated through simulated and experimental studies. Ten HRT schemes with different rotation and translation combinations and the conventional rotation-only scheme were tested. General HRT schemes (containing both rotational and translational movements) have comparable sampling completeness (SC), comparable sensitivity and better spatial resolution (in terms of both DR and visual image quality), as compared to the conventional rotation-only scheme We concluded that HRT scan scheme enables in vivo animal SPECT imaging on the stationary scanner and has the advantage of improving image resolution.
UR - https://www.scopus.com/pages/publications/77951155778
U2 - 10.1109/NSSMIC.2009.5401986
DO - 10.1109/NSSMIC.2009.5401986
M3 - Conference contribution
AN - SCOPUS:77951155778
SN - 9781424439621
T3 - IEEE Nuclear Science Symposium Conference Record
SP - 2686
EP - 2689
BT - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
T2 - 2009 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2009
Y2 - 25 October 2009 through 31 October 2009
ER -