The investigation of reduced field-of-view diffusion-weighted imaging (DWI) in patients with nasopharyngeal carcinoma: comparison with conventional DWI.
| Title: | The investigation of reduced field-of-view diffusion-weighted imaging (DWI) in patients with nasopharyngeal carcinoma: comparison with conventional DWI. |
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| Authors: | Meng, Tiebao, Liu, Huiming, Liu, Jinbo, Wang, Feixiang, Xie, Chuanmiao, Ke, Liangru, He, Haoqiang |
| Source: | Acta Radiologica; Jun2023, Vol. 64 Issue 6, p2118-2125, 8p |
| Subject Terms: | ECHO-planar imaging, DIFFUSION magnetic resonance imaging, NASOPHARYNX cancer, MAGNETIC resonance imaging, NASOPHARYNX tumors, SIGNAL-to-noise ratio, DIFFUSION coefficients |
| Abstract: | Background: Field-of-view optimized and constrained undistorted single-shot imaging (FOCUS) is a new sequence that shows enhanced anatomical details, improving the diffusion-weighted (DW) images. Purpose: To investigate the value of FOCUS diffusion-weighted imaging (DWI) in the evaluation of nasopharyngeal carcinoma (NPC) and compare it with the single-shot echo planner imaging (SS-EPI) DWI approach. Material and Methods: A total of 87 patients with NPC underwent magnetic resonance imaging, including FOCUS and SS-EPI DWI sequences. The signal-to-noise ratio (SNR), signal-intensity ratio (SIR), contrast-to-noise ratio (CNR), and apparent diffusion coefficient (ADC) values of the nasopharyngeal lesions were measured and compared. According to the clinical stages of patients, T and N were divided into early and advanced stage groups, respectively. The mean ADC values of the two techniques were computed, and the area under the curve (AUC) was estimated to calculate the diagnostic efficiency. Results: Subjective and objective image qualitative values of FOCUS were significantly higher than those of SS-EPI. The ADC values for FOCUS of early T and N stages were significantly lower than those of the advanced stages. Conclusion: FOCUS provides significantly better image quality in NPC compared to SS-EPI, with lower ADC values for early-stage disease than late-stage disease. [ABSTRACT FROM AUTHOR] |
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| Database: | Complementary Index |
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| Items | – Name: Title Label: Title Group: Ti Data: The investigation of reduced field-of-view diffusion-weighted imaging (DWI) in patients with nasopharyngeal carcinoma: comparison with conventional DWI. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Meng%2C+Tiebao%22">Meng, Tiebao</searchLink><br /><searchLink fieldCode="AR" term="%22Liu%2C+Huiming%22">Liu, Huiming</searchLink><br /><searchLink fieldCode="AR" term="%22Liu%2C+Jinbo%22">Liu, Jinbo</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Feixiang%22">Wang, Feixiang</searchLink><br /><searchLink fieldCode="AR" term="%22Xie%2C+Chuanmiao%22">Xie, Chuanmiao</searchLink><br /><searchLink fieldCode="AR" term="%22Ke%2C+Liangru%22">Ke, Liangru</searchLink><br /><searchLink fieldCode="AR" term="%22He%2C+Haoqiang%22">He, Haoqiang</searchLink> – Name: TitleSource Label: Source Group: Src Data: Acta Radiologica; Jun2023, Vol. 64 Issue 6, p2118-2125, 8p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22ECHO-planar+imaging%22">ECHO-planar imaging</searchLink><br /><searchLink fieldCode="DE" term="%22DIFFUSION+magnetic+resonance+imaging%22">DIFFUSION magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22NASOPHARYNX+cancer%22">NASOPHARYNX cancer</searchLink><br /><searchLink fieldCode="DE" term="%22MAGNETIC+resonance+imaging%22">MAGNETIC resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22NASOPHARYNX+tumors%22">NASOPHARYNX tumors</searchLink><br /><searchLink fieldCode="DE" term="%22SIGNAL-to-noise+ratio%22">SIGNAL-to-noise ratio</searchLink><br /><searchLink fieldCode="DE" term="%22DIFFUSION+coefficients%22">DIFFUSION coefficients</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Background: Field-of-view optimized and constrained undistorted single-shot imaging (FOCUS) is a new sequence that shows enhanced anatomical details, improving the diffusion-weighted (DW) images. Purpose: To investigate the value of FOCUS diffusion-weighted imaging (DWI) in the evaluation of nasopharyngeal carcinoma (NPC) and compare it with the single-shot echo planner imaging (SS-EPI) DWI approach. Material and Methods: A total of 87 patients with NPC underwent magnetic resonance imaging, including FOCUS and SS-EPI DWI sequences. The signal-to-noise ratio (SNR), signal-intensity ratio (SIR), contrast-to-noise ratio (CNR), and apparent diffusion coefficient (ADC) values of the nasopharyngeal lesions were measured and compared. According to the clinical stages of patients, T and N were divided into early and advanced stage groups, respectively. The mean ADC values of the two techniques were computed, and the area under the curve (AUC) was estimated to calculate the diagnostic efficiency. Results: Subjective and objective image qualitative values of FOCUS were significantly higher than those of SS-EPI. The ADC values for FOCUS of early T and N stages were significantly lower than those of the advanced stages. Conclusion: FOCUS provides significantly better image quality in NPC compared to SS-EPI, with lower ADC values for early-stage disease than late-stage disease. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Acta Radiologica is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1177/02841851231159389 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 2118 Subjects: – SubjectFull: ECHO-planar imaging Type: general – SubjectFull: DIFFUSION magnetic resonance imaging Type: general – SubjectFull: NASOPHARYNX cancer Type: general – SubjectFull: MAGNETIC resonance imaging Type: general – SubjectFull: NASOPHARYNX tumors Type: general – SubjectFull: SIGNAL-to-noise ratio Type: general – SubjectFull: DIFFUSION coefficients Type: general Titles: – TitleFull: The investigation of reduced field-of-view diffusion-weighted imaging (DWI) in patients with nasopharyngeal carcinoma: comparison with conventional DWI. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Meng, Tiebao – PersonEntity: Name: NameFull: Liu, Huiming – PersonEntity: Name: NameFull: Liu, Jinbo – PersonEntity: Name: NameFull: Wang, Feixiang – PersonEntity: Name: NameFull: Xie, Chuanmiao – PersonEntity: Name: NameFull: Ke, Liangru – PersonEntity: Name: NameFull: He, Haoqiang IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 02841851 Numbering: – Type: volume Value: 64 – Type: issue Value: 6 Titles: – TitleFull: Acta Radiologica Type: main |
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