Comparison of magnetization transfer contrast of conventional and simultaneous multislice turbo spin echo acquisitions focusing on excitation time interval.
Purpose: Image contrast differs between conventional multislice turbo spin echo (conventional TSE) and multiband turbo spin echo (SMS-TSE). Difference in time interval between excitations for adjacent slices (SETI) might cause this difference. This study aimed to evaluate the influence of SETI on MT...
| Publicado en: | Japanese Journal of Radiology Vol. 37; no. 8; pp. 579 - 590 |
|---|---|
| Autores principales: | , , , , , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
Aug2019
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=137588235&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 137588235 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18671071 AUCM jtl: Japanese Journal of Radiology issn: 18671071 maglogo: N pubinfo: dt: Aug2019 vid: 37 iid: 8 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 137588235 137588235 NLM31230186 137588235 10.1007/s11604-019-00848-w NLM31230186 137588235 ppf: 579 ppct: 11 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Comparison of magnetization transfer contrast of conventional and simultaneous multislice turbo spin echo acquisitions focusing on excitation time interval. aug: au: Murata, Syo Tachibana, Yasuhiko Murata, Katsutoshi Kamagata, Koji Hori, Masaaki Andica, Christina Suzuki, Michimasa Wada, Akihiko Kumamaru, Kanako Hagiwara, Akifumi Irie, Ryusuke Sato, Shuji Hamasaki, Nozomi Fukunaga, Issei Hoshito, Haruyoshi Aoki, Shigeki affil: Department of Radiology, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, 113-0033, Tokyo, Japan sug: subj: Image Processing, Computer Assisted Methods Brain Anatomy and Histology Magnetic Resonance Imaging Methods Human Male Adult Reproducibility of Results Phantoms, Imaging Validation Studies Comparative Studies Evaluation Research Multicenter Studies Adult: 19-44 years Male ab: Purpose: Image contrast differs between conventional multislice turbo spin echo (conventional TSE) and multiband turbo spin echo (SMS-TSE). Difference in time interval between excitations for adjacent slices (SETI) might cause this difference. This study aimed to evaluate the influence of SETI on MT effect for conventional TSE and compare conventional TSE with SMS-TSE in this respect.Materials and Methods: Three different agar concentration phantoms were scanned with conventional TSE by adjusting SETI and TR. Signal change for different SETI was evaluated using Pearson's correlation analysis. SMS-TSE was acquired by changing TR similarly. Three human volunteers were scanned with similar settings to evaluate reproducibility of the phantom results in human brain.Results: In conventional TSE, shorter SETI induced larger signal reduction. Longer TR and higher agar concentration emphasized this characteristic. Significant linear correlation (P < 0.05) was found in the major cases. The SMS-TSE signal intensity in each TR and phantom was smaller than the assumable levels in conventional TSE when the slices were simultaneously excited. Similar characteristic was observed in human brain.Conclusion: Shorter SETI results in larger MT effect in conventional TSE. The contrast change in SMS-TSE was larger than the supposable level from simultaneous excitation, which needs consideration in clinics. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|