Oxygen-enhanced lung magnetic resonance imaging: influence of inversion pulse slice selectivity on inversion recovery half-Fourier single-shot turbo spin-echo signal.
Purpose: The purpose of this study was to evaluate in vivo the influence of inversion pulse slice selectivity on oxygen-enhanced magnetic resonance imaging (MRI).Materials and Methods: Thirteen healthy volunteers were studied with a two-dimensional cardiac- and respiratory-gated adiabatic inversion-...
| Publicado en: | Japanese Journal of Radiology Vol. 29; no. 4; pp. 244 - 251 |
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| Autores principales: | , , , , , , , , , , , , , |
| Formato: | research Journal Article |
| Publicado: |
Springer Nature
May2011
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| 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=104710575&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104710575 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18671071 AUCM jtl: Japanese Journal of Radiology issn: 18671071 maglogo: N pubinfo: dt: May2011 vid: 29 iid: 4 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104710575 60766961 NLM21607837 2011067751 10.1007/s11604-010-0548-4 NLM21607837 104710575 ppf: 244 ppct: 7 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Oxygen-enhanced lung magnetic resonance imaging: influence of inversion pulse slice selectivity on inversion recovery half-Fourier single-shot turbo spin-echo signal. aug: au: Takenaka D Puderbach M Ohno Y Risse F Ley S Sugimura K Kauczor HU Takenaka, Daisuke Puderbach, Michael Ohno, Yoshiharu Risse, Frank Ley, Sebastian Sugimura, Kazuro Kauczor, Hans-Ulrich affil: Department of Radiology, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan sug: subj: Lung Anatomy and Histology Magnetic Resonance Imaging Methods Oxygen Metabolism Adult Electrocardiography Female Mathematics Image Processing, Computer Assisted Male Models, Statistical Phantoms, Imaging Reproducibility of Results Adult: 19-44 years Female Male ab: Purpose: The purpose of this study was to evaluate in vivo the influence of inversion pulse slice selectivity on oxygen-enhanced magnetic resonance imaging (MRI).Materials and Methods: Thirteen healthy volunteers were studied with a two-dimensional cardiac- and respiratory-gated adiabatic inversion-recovery half-Fourier single-shot turbo spin-echo (HASTE) sequence with either slice-selective or non-slice-selective inversion recovery (IR) pulse at inversion times increasing from 300 to 1400 ms. The signal-to-noise ratio (SNR) at every inversion time (TI), real signal difference (ΔSI), and relative enhancement ratio of lung parenchyma at TI ≥ 800 ms were statistically compared for oxygen-enhanced and non-oxygen-enhanced MR images with slice-selective or non-slice-selective IR pulses.Results: The SNRs of acquisitions with slice-selective IR pulses were significantly higher than those of non-slice-selective IR pulses (P < 0.05). At TI 800 ms, the ΔSI of lung parenchyma on IR-HASTE images with slice-selective inversion pulse type was significantly higher than on that with the non-slice-selective type (P < 0.05). Relative enhancement ratios of the slice-selective IR pulses were significantly lower than those of non-slice-selective IR pulses at TIs between 800 and 1400 ms (P < 0.05).Conclusion: Slice selectivity of inversion pulse type affects oxygen-enhanced MRI in vivo. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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