磁共振q_空间扩散成像的初步研究.pdfVIP

2004 20 10 Chin J M ed Imaging T echnol, 2004, Vol 20, No 10 1599 Preliminary study of qspace diffusion imaging LI Dej un, BA O Shanglian, MA Lin ( The Center f or Tumor D iagnosis and T herap eutical Ph sics, Peking Universit , Beij ing 10087 1, China) [Abstract] Objective T o investig ate the possibilit y and feasibility of M R qspace imaging using clinical M R equipment . Meth ods DT I with eight diffe ent qvalues was pe fo med in the head of 12 healthy adult voluntee s. Based on the ADC calculated by the DT I data, the p ofile of w ate diffusion in white matte w as computed by fou ie t ansfo m . Results T he p ofile of wate dif fusion was clea ly demonst ated. Conclusion qspace imag ing p ovides the quantificational info mation about the diffusion of wate in w hite matte and has potential application in diag nosis. [key ords] qspace imaging; Diffusion tenso imag ing ; M agnet ic esonance imag ing; Diffusion q 1, 2 1 3 李德军 , 包尚联 , 马 林 ( 1. , 100871; 2. ; 3. ) [ ] q 1. 5T 12 q , , q, [ ] q; ; ; [ ] R322. 81; R445. 2 [ ] A [ ] 2004) , DT I q = g/ 2 ( 1) , q g , , q , NMR q , ( ecip ocal spatial) , q g ( 1) , [ 1] q m - 1, cm- 1 [ 2] E ( q) : ! M