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Comparison between ZOOMit DWI and conventional DWI in the assessment of foot and ankle infection: a prospective study.

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Title: Comparison between ZOOMit DWI and conventional DWI in the assessment of foot and ankle infection: a prospective study.
Authors: Xia, Shuda1 (AUTHOR), Gowda, Prajwal1 (AUTHOR), Silva, Flavio Duarte1 (AUTHOR), Guirguis, Mina1 (AUTHOR), Ravi, Varun1 (AUTHOR), Xi, Yin1 (AUTHOR), Chhabra, Avneesh1,2,3,4,5 (AUTHOR) avneesh.chhabra@utsouthwestern.edu
Source: European Radiology. May2024, Vol. 34 Issue 5, p3483-3492. 10p.
Subjects: Diffusion magnetic resonance imaging, Ankle, Magnetic resonance imaging, Osteomyelitis, Longitudinal method, Ankle injuries, Anatomical pathology
Abstract: Objective: The study aimed to compare ZOOMit diffusion-weighted imaging (DWI) MRI with conventional DWI MRI for visualizing small bones in the foot, soft tissue abscesses, and osteomyelitis. Materials and methods: The cohort consisted of a consecutive series of patients with potential foot and ankle infections referred for MR imaging. Patients were imaged using both conventional and ZOOMit DWI in the same setting. Blinded reads were then conducted in separate settings and independent of known clinical diagnosis by two expert radiologists. The results from the reads were compared statistically using paired t-tests and with biopsy specimen analysis, both anatomopathological and microbiological. Results: There was improvement in fat suppression using ZOOMit sequence compared to conventional DWI (p =.001) with no significant difference in motion artifacts (p =.278). ZOOMit had a higher rate of concordance with pathology findings for osteomyelitis (72%, 31/43 cases) compared with conventional DWI (60%, 26/43 cases). ZOOMit also identified 46 additional small bones of the foot and ankle (405/596, 68.0%) than conventional DWI (359/596, 60.2%). Conventional DWI however exhibited a more negative contrast-to-noise ratio (CNR) than ZOOMit (p = 0.001). Conclusion: ZOOMit DWI improves distal extremity proton diffusion assessment and helps visualize more bones in the foot, with less image distortion and improved fat saturation at the expense of reduced CNR. This makes it a viable option for assessing lower extremity infections. Clinical relevance statement: This study highlights the novel utilization of ZOOMit diffusion-weighted imaging (DWI) for the assessment of lower extremity lesions compared to conventional DWI. Key Points: • Distal extremity diffusion-weighted imaging (DWI) is often limited. • ZOOMit DWI displayed improved fat suppression with less motion artifacts and better visualization of the lower extremity bones than conventional DWI. • ZOOMit shows decreased contrast-to-noise ratio than conventional DWI. [ABSTRACT FROM AUTHOR]
Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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. (Copyright applies to all Abstracts.)
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  Data: Comparison between ZOOMit DWI and conventional DWI in the assessment of foot and ankle infection: a prospective study.
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  Data: <searchLink fieldCode="JN" term="%22European+Radiology%22">European Radiology</searchLink>. May2024, Vol. 34 Issue 5, p3483-3492. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Diffusion+magnetic+resonance+imaging%22">Diffusion magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Ankle%22">Ankle</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+resonance+imaging%22">Magnetic resonance imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Osteomyelitis%22">Osteomyelitis</searchLink><br /><searchLink fieldCode="DE" term="%22Longitudinal+method%22">Longitudinal method</searchLink><br /><searchLink fieldCode="DE" term="%22Ankle+injuries%22">Ankle injuries</searchLink><br /><searchLink fieldCode="DE" term="%22Anatomical+pathology%22">Anatomical pathology</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objective: The study aimed to compare ZOOMit diffusion-weighted imaging (DWI) MRI with conventional DWI MRI for visualizing small bones in the foot, soft tissue abscesses, and osteomyelitis. Materials and methods: The cohort consisted of a consecutive series of patients with potential foot and ankle infections referred for MR imaging. Patients were imaged using both conventional and ZOOMit DWI in the same setting. Blinded reads were then conducted in separate settings and independent of known clinical diagnosis by two expert radiologists. The results from the reads were compared statistically using paired t-tests and with biopsy specimen analysis, both anatomopathological and microbiological. Results: There was improvement in fat suppression using ZOOMit sequence compared to conventional DWI (p =.001) with no significant difference in motion artifacts (p =.278). ZOOMit had a higher rate of concordance with pathology findings for osteomyelitis (72%, 31/43 cases) compared with conventional DWI (60%, 26/43 cases). ZOOMit also identified 46 additional small bones of the foot and ankle (405/596, 68.0%) than conventional DWI (359/596, 60.2%). Conventional DWI however exhibited a more negative contrast-to-noise ratio (CNR) than ZOOMit (p = 0.001). Conclusion: ZOOMit DWI improves distal extremity proton diffusion assessment and helps visualize more bones in the foot, with less image distortion and improved fat saturation at the expense of reduced CNR. This makes it a viable option for assessing lower extremity infections. Clinical relevance statement: This study highlights the novel utilization of ZOOMit diffusion-weighted imaging (DWI) for the assessment of lower extremity lesions compared to conventional DWI. Key Points: • Distal extremity diffusion-weighted imaging (DWI) is often limited. • ZOOMit DWI displayed improved fat suppression with less motion artifacts and better visualization of the lower extremity bones than conventional DWI. • ZOOMit shows decreased contrast-to-noise ratio than conventional DWI. [ABSTRACT FROM AUTHOR]
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  Label:
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  Data: <i>Copyright of European Radiology is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. 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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        Value: 10.1007/s00330-023-10315-w
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        Text: English
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    Subjects:
      – SubjectFull: Diffusion magnetic resonance imaging
        Type: general
      – SubjectFull: Ankle
        Type: general
      – SubjectFull: Magnetic resonance imaging
        Type: general
      – SubjectFull: Osteomyelitis
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      – SubjectFull: Ankle injuries
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      – TitleFull: Comparison between ZOOMit DWI and conventional DWI in the assessment of foot and ankle infection: a prospective study.
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              M: 05
              Text: May2024
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