3T magnetic resonance for evaluation of adult pulmonary tuberculosis

Yan, Qinqin; Yang, Shuyi; Shen, Jie; Lu, Shuaiyao; Shan, Fei; Shi, Yuxin

doi:10.1016/j.ijid.2020.02.006

Cited by 6 publications

(4 citation statements)

References 33 publications

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“…First, the study has a retrospective design and is limited to a single institution with a limited number of patients and lesions. However, our study included a higher number of subjects than past studies investigating similar techniques 11,14,16 and the diagnostic performance differences between both tested sequences reached statistical significance for lung nodules. StarVIBE was always performed second.…”

Section: Discussionmentioning

confidence: 87%

“…12 Previous studies have reported higher signal-to-noise (SNR) and contrast-to-noise ratio (CNR) when compared to a standard 3D T1-GRE Cartesian volume interpolated breath-hold examination (VIBE) sequence for chest imaging, and high sensitivity for the detection of small pulmonary nodules. 9,[13][14][15][16] Hence, we hypothesized that lung MRI with a free-breathing 3D sequence using a stack-of-stars acquisition (StarVIBE) could improve the staging performance of a whole-body PET/MRI protocol at the chest level.…”

mentioning

confidence: 99%

“…More recently, a new sequence has been developed using a radial stack‐of‐stars sampling scheme to acquire k‐space information: 10,11 radial sampling offers several promising advantages for clinical scanning with a higher robustness to motion, fewer aliasing artifacts (manifested as streaking artifacts rather than replications), continuous update of the k‐space center throughout the acquisition, and minor undersampling behavior in cases of a reduction in the number of spokes for scan acceleration 12 . Previous studies have reported higher signal‐to‐noise (SNR) and contrast‐to‐noise ratio (CNR) when compared to a standard 3D T1‐GRE Cartesian volume interpolated breath‐hold examination (VIBE) sequence for chest imaging, and high sensitivity for the detection of small pulmonary nodules 9,13–16 . Hence, we hypothesized that lung MRI with a free‐breathing 3D sequence using a stack‐of‐stars acquisition (StarVIBE) could improve the staging performance of a whole‐body PET/MRI protocol at the chest level.…”

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confidence: 99%

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Chest PET/MRI in Solid Cancers: Comparing the Diagnostic Performance of a Free‐Breathing 3D‐T1‐GRE Stack‐of‐Stars Volume Interpolated Breath‐Hold Examination (StarVIBE) Acquisition With That of a 3D‐T1‐GRE Volume Interpolated Breath‐Hold Examination (VIBE) for Chest Staging During Whole‐Body PET/MRI

Vermersch

Emsen

Monnet

et al. 2021

Magnetic Resonance Imaging

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Background Whole‐body positron emission tomography/magnetic resonance imaging (WB‐PET/MRI) is increasingly used in oncology. However, chest staging remains challenging. Purpose To compare the diagnostic performance of a free‐breathing 3D‐T1‐GRE stack‐of‐stars volume interpolated breath‐hold examination (StarVIBE) with that of a 3D‐T1‐GRE volume interpolated breath‐hold examination (VIBE) during WB‐PET/MRI for chest staging. Study Type Retrospective, cohort study. Population One hundred and twenty‐three patients were referred for initial staging of solid cancer, 46 of whom had pulmonary nodules and 14 had pulmonary metastasis. Field Strength/Sequence Free‐breathing 3D‐T1‐GRE stack‐of‐stars (StarVIBE) and Cartesian 3D‐T1‐GRE VIBE at 3.0 T. Assessment Image quality was assessed using a 4‐point scale and using the signal‐to‐noise ratio (SNR) of lung parenchyma and contrast‐to‐noise ratio (CNR) of pulmonary nodules. Diagnostic performances of both sequences were determined by three independent radiologists for detection of pulmonary nodules, lymph node involvement, and bone metastases using chest CT, pathology, and follow‐up as reference standards. Statistical Tests Paired Student's t‐test; chi‐squared; Fisher's exact test. A P value <0.05 was considered statistically significant. Results StarVIBE quality was judged as better in 34% of cases and at least equivalent to VIBE in 89% of cases, with significantly higher quality scores (4 [4‐4] vs. 3 [3‐4], respectively). SNR and CNR values were significantly higher with StarVIBE (8 ± 1.3 and 9.7 ± 4.6, respectively) than with VIBE (1.8 ± 0.2 and 5.5 ± 3.3, respectively). Compared to VIBE, StarVIBE showed significantly higher sensitivity (73% [95% CI 62–82] vs. 44% [95% CI 33–55], respectively) and specificity (95% [95% CI 88–99] vs. 67% [95% CI 56–77]) for pulmonary nodules detection and significantly higher sensitivity (100% [95% CI 89–100] vs. 67% [95% CI 48–82], respectively) for detection of lymph node involvement. Sensitivities for bone metastases detection were not significantly different (100% [95% CI 88–100] vs. 82% [95% CI 63–94], P = 0.054). Data Conclusion Owing to improved SNR and CNR and spatial resolution, a free‐breathing 3D stack‐of‐stars T1‐GRE sequence improves chest staging in comparison with standard 3D‐T1‐GRE VIBE and may be integrated in WB‐PET/MRI acquisitions for initial staging of solid cancer. Level of Evidence 3 Technical Efficacy Stage 2

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Section: Discussionmentioning

confidence: 87%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Chest PET/MRI in Solid Cancers: Comparing the Diagnostic Performance of a Free‐Breathing 3D‐T1‐GRE Stack‐of‐Stars Volume Interpolated Breath‐Hold Examination (StarVIBE) Acquisition With That of a 3D‐T1‐GRE Volume Interpolated Breath‐Hold Examination (VIBE) for Chest Staging During Whole‐Body PET/MRI

Vermersch

Emsen

Monnet

et al. 2021

Magnetic Resonance Imaging

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“…Radial technique is based on acquiring k-space data along radial spokes. Because of its low sensitivity to motion, radial stack-of-stars acquisition allows a free-breathing T1W sequence (T1WI-starVIBE) that can depict pulmonary lesions, especially for the person who are unable to hold their breath (18,19). The T1WI-starVIBE sequence can also provide highresolution images (16).…”

Section: Introductionmentioning

confidence: 99%

Combined anatomical MRI differentiates pulmonary invasive adenocarcinoma from tuberculoma in noncalcified nodule: a retrospective comparison of CT with MRI

Yang,

Shi,

Liu

et al. 2023

Preprint

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Objective: MRI as a non-ionizing modality can be a complementary tool for nodules assessment. This study is aimed to evaluate the potential of the combined conventional and modified anatomical MRI sequences for differential diagnosis of invasive adenocarcinoma (IAC) and tuberculoma. Materials and methods:Sixty-seven patients (median 54 years, range 18-82 years) with 82 noncalcified nodules (mean 19.56±6.85 mm, range 7-30 mm) underwent CT and MRI (T1WI-starVIBE, T1WI-VIBE, T2WI-TSE-fBLADE). Two radiologists independently assessed nodule dimensions and morphologic features (margin, morphology, lobulation, spiculation, cavity, air bronchogram, pleural indentation). Comparison of categorical variables was performed using Chi-square test. The inter-method agreement of morphologic features assessment by CT and MRI sequences were compared using Kappa test. Multivariate logistic regression analyses were applied to identify independent predictors to IAC. ROC analysis was performed to investigate the differential diagnosis capability. Results: Thirty-eight IACs and 44 tuberculomas were identified. Readers 1 and 2 underestimated the nodules mean diameter with T1WI-starVIBE (T1WI-VIBE, T2WI-TSE-fBLADE) by 0.86±1.71 mm (1.19±2.06 mm, 0.15±1.96 mm) and 0.99±1.75 mm (1.27±2.04 mm, 0.19±1.91 mm). The inter-method agreements between MRI and CT were “fair” to “excellent” in the evaluation of morphological features except for spiculation (0.318≦Kappa≦0.895). Compared with the tuberculoma group, the IAC group was significant with unclear margin (T1WI-starVIBE, T1WI-VIBE), irregular morphology (CT, MRI), lobulation (CT, MRI), spiculation (T1WI-starVIBE, T2WI-TSE-fBLADE) and air bronchogram (CT, T1WI-starVIBE and T1WI-VIBE) (P﹤0.05). The AUC values for the logistic model by the combination of CT and MRI were 0.867/0.877 (reader 1/2: sensitivity 73.68%/76.32%, specificity 86.36%/86.36%) and were significantly higher than that by T1WI-starVIBE (P=0.002) and T1WI-TSE-fBLADE (P=0.027) (reader 1), as well as higher than that by CT (P=0.045) and T1WI-starVIBE (P=0.003) (reader 2). Conclusion: The combined conventional and modified anatomical MRI sequences has diagnostic potential in distinguishing pulmonary IAC from tuberculoma.

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Imaging of Thoracic Tuberculosis

et al. 2022

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3T magnetic resonance for evaluation of adult pulmonary tuberculosis

Cited by 6 publications

References 33 publications

Combined anatomical MRI differentiates pulmonary invasive adenocarcinoma from tuberculoma in noncalcified nodule: a retrospective comparison of CT with MRI

Imaging of Thoracic Tuberculosis

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