Dataset Information

Differentiating gallbladder cancer from polyps using non-enhanced magnetic resonance imaging.

ABSTRACT:

Purpose

This retrospective cohort study assessed the efficiency of non-enhanced magnetic resonance imaging (MRI) for differentiating gallbladder cancer (GBC) from gallbladder polyps (GBPs) measuring ≥ 10 mm.

Material and methods

Patients diagnosed with GBCs or GBPs ≥ 10 mm and GBC ≤ T2 stage were eligible for inclusion. Two independent blinded readers assessed the continuity of the mucosal and muscular layers (CMML; present or absent) and normalised signal intensity ratio (NIR) on the apparent diffusion coefficient map (NIR-ADC), T1-weighted image (NIR-T1WI), and T2-weighted half-Fourier acquisition single-shot turbo spin-echo image. Univariate and multivariate logistic regression analyses and interobserver agreement analyses were performed to detect predictive variables differentiating GBCs from GBPs. Receiver operating characteristic (ROC) analysis was performed to evaluate diagnostic performance. A reproducibility test was performed to verify the predictive variables.

Results

Multivariate analysis showed significant differences in CMML, NIR-ADC, and NIR-T1WI (p < 0.001). The positive predictive value (PPV) and specificity of the absence of CMML were approximately 100%. The CMML showed the best specificity, accuracy, and PPV in the reproducibility study. The sensitivity of CMML alone was approximately 50%, whereas it increased to approximately 70% when combined with NIR-ADC. The diagnostic performance of the combination, including sensitivity, was almost like that of tumour size. The combined tumour size and CMML assessment showed higher diagnostic performance than tumour size alone.

Conclusions

The absence of CMML and NIR-ADC ≤ 1.86 helped in differentiating GBCs from GBPs. Evaluation of the absence of CMML and measurement of tumour size could better aid in determining between the two than measurement of tumour size alone.

SUBMITTER: Ohki K

PROVIDER: S-EPMC10953508 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature

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Publications

Differentiating gallbladder cancer from polyps using non-enhanced magnetic resonance imaging.

Ohki Kazuyoshi K Igarashi Takao T Yakabe Hiroyuki H Shiraishi Megumi M Suzuki Takayuki T Woo Jun J Ojiri Hiroya H

Polish journal of radiology 20240223

<h4>Purpose</h4>This retrospective cohort study assessed the efficiency of non-enhanced magnetic resonance imaging (MRI) for differentiating gallbladder cancer (GBC) from gallbladder polyps (GBPs) measuring ≥ 10 mm.<h4>Material and methods</h4>Patients diagnosed with GBCs or GBPs ≥ 10 mm and GBC ≤ T2 stage were eligible for inclusion. Two independent blinded readers assessed the continuity of the mucosal and muscular layers (CMML; present or absent) and normalised signal intensity ratio (NIR) on ...[more]

PMID: 38510547

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Dataset Information

Differentiating gallbladder cancer from polyps using non-enhanced magnetic resonance imaging.

Purpose

Material and methods

Results

Conclusions

Publications

Differentiating gallbladder cancer from polyps using non-enhanced magnetic resonance imaging.

Similar Datasets

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