Yong hee Han1, Kang soo Kim1,
Dong Hyuk Kim1, Kwang sik Lee2, Jae Ryang Juhn3,
Choong ki Eun3, Chi woong Mun1,4
1Bio medical engineering, Inje
University, Gimhae, Gyeongsangnam-do, Korea, Republic of; 2Medical
Image Science, Pusan Paik hospital, Korea, Republic of; 3Diagnostic
of Radiology Medical School, Pusan Paik hospital, Korea, Republic of; 4Medical
Image Research Center, Inje University, Korea, Republic of
This
study proposes the keyhole method in order to improve the time resolution of
the proton resonance frequency (PRF) MR temperature monitoring technique. To
evaluate proposed method, the values of Root Mean Square (RMS) error were
compared with full phase encoded temperature images. And the paired t-test
was performed for optimization at Keyhole technique. As a result of this
study, >32 encoded images were reasonable in 95% confidence level whereas
<32 encoded images showed statistically significant difference.