Osseous-Tissue Tumor Reporting and Data System With Diffusion-Weighted Imaging of Bone Tumors—An Interreader Analysis and Whether It Adds Incremental Value on Tumor Grading Over Conventional Magnetic Resonance Imaging

Guirguis, Mina; Gupta, Anurag; Thakur, Uma; Pezeshk, Parham; Weatherall, Paul T.; Sharan, Gaurav; Xi, Yin; Chhabra, Avneesh

doi:10.1097/rct.0000000000001415

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…The authors also conducted a similar study to assess the added diagnostic value of incorporating the DWI sequences into the OT-RADS. They concluded that the addition of DWI does not significantly enhance the diagnostic performance of OT-RADS [10].…”

Section: Osseous Tumor Reporting and Data System (Ot-rads)mentioning

confidence: 99%

Bone Reporting and Data System (Bone-RADS) and Other Proposed Practice Guidelines for Reporting Bone Tumors

Ghasemi,

Ahlawat

2024

Rofo

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Background The purpose of this article is to review the different bone tumor radiology reporting systems [Bone Reporting and Data System (Bone-RADS), Osseous Tumor Reporting and Data System (OT-RADS), Solitary Bone Tumor Imaging Reporting and Data System (BTI-RADS), and Radiological Evaluation Score for Bone Tumors (REST)] and summarize their advantages and disadvantages. Methods A selective search of PubMed was performed for literature regarding the definition and discussion of bone tumor reporting systems. No time frame was selected, but the search was particularly focused on current literature on musculoskeletal radiology lexicon. Results To date, four major reporting systems has been proposed to standardize and systematize the reporting of imaging studies of bone tumors: Bone-RADS, OT-RADS, BTI-RADS, and REST. Both Bone-RADS and OT-RADS aid in the characterization and management of bone lesions on CT and MRI. OT-RADS and REST can be applied to MRI and radiography, respectively. Conclusion Radiologists play a central role in the detection and characterization of asymptomatic (or incidentally detected) and symptomatic bone tumors. There are several existing bone tumor reporting systems with various advantages and disadvantages including emphasis on lesion characterization as well as management of incidentally detected bone lesions. Key Points

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Section: Osseous Tumor Reporting and Data System (Ot-rads)mentioning

confidence: 99%

Bone Reporting and Data System (Bone-RADS) and Other Proposed Practice Guidelines for Reporting Bone Tumors

Ghasemi,

Ahlawat

2024

Rofo

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Diffusion weighted imaging of extremity bone tumors—inter-reader analysis and incremental value over conventional MR imaging

Guirguis

Gupta

Thakur

et al. 2023

BJR

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Objective: To determine whether the addition of diffusion-weighted imaging (DWI) to conventional MRI improves diagnostic accuracy of bone tumor characterization with the hypothesis that the DWI has incremental value in the diagnosis of osseous tumors. Methods: In this multireader cross-sectional validation study, four musculoskeletal radiologists evaluated osseous tumors blinded to final diagnosis in two rounds—first without DWI or apparent diffusion coefficient (ADC) maps, then months later with these available. Each reader recorded a binary result as to whether the lesion is benign or malignant. Intraclass correlation (ICC) and Conger’s κ were used. Diagnostic performance measures including area under the receiver operating curve (AUC) were reported. Results: 133 osseous tumors of the extremities (76 benign, 57 malignant) were tested. Blinded to DWI, average reader sensitivity, specificity, positive-predictive value, and negative-predictive value were 0.83, 0.92, 0.94, and 0.82, respectively. With DWI, the values were 0.85, 0.92, 0.94, and 0.83, respectively. Interreader agreement was good for both rounds (0.67 and 0.71, respectively, p-value > 0.05). Average reader confidence was 4.1 and 4.4, respectively (p-value < 0.001). ADC values and DWI/ADC ratios showed significant differences between benign and malignant tumors. Conclusion: DWI and ADC show statistically significantly different values of benign from malignant osseous tumors and mildly increased radiologist confidence with similar interreader reliability. However, given similar diagnostic accuracy, conventional MR imaging is adequate for bone tumor characterization and incremental value of DWI is limited. Advances in knowledge: This paper is the first of its kind to report the use of DWI/ADC ratio for the diagnosis of bone tumors.

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Osseous-Tissue Tumor Reporting and Data System With Diffusion-Weighted Imaging of Bone Tumors—An Interreader Analysis and Whether It Adds Incremental Value on Tumor Grading Over Conventional Magnetic Resonance Imaging

Cited by 2 publications

References 20 publications

Bone Reporting and Data System (Bone-RADS) and Other Proposed Practice Guidelines for Reporting Bone Tumors

Bone Reporting and Data System (Bone-RADS) and Other Proposed Practice Guidelines for Reporting Bone Tumors

Diffusion weighted imaging of extremity bone tumors—inter-reader analysis and incremental value over conventional MR imaging

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