ArticlePediatric radiology2024
Morphometric and clinical comparison of MRI-based synthetic CT to conventional CT of the hip in children.
Article in Pediatric radiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07781202 (A Multicenter, Single-Arm, Prospective Phase II Clinical Study of Trastuzumab Rezetecan Combined With Radiotherapy in Patients With HER2-Mutated Oligoprogressive Advanced Non-Small Cell Lung Cancer), which is not on this map. Cited by 6 papers.
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A Multicenter, Single-Arm, Prospective Phase II Clinical Study of Trastuzumab Rezetecan Combined With Radiotherapy in Patients With HER2-Mutated Oligoprogressive Advanced Non-Small Cell Lung Cancer
Who cites it
6 citing papers in PubMed, 6 citations in OpenAlex.
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- Evaluation of magnetic resonance imaging and deep learning-based synthetic computed tomography for calcified intradural tumors - importance of domain-specific training and validation of synthetic imaging methods for clinical application.Acta neurochirurgica · 2025Observational
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Authors and funding
5 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundMRI-based synthetic CT (sCT) generates CT-like images from MRI data.
objectiveTo evaluate equivalence, inter- and intraobserver reliability, and image quality of sCT compared to conventional (cCT) for assessing hip morphology and maturity in pediatric patients. MATERIALS AND
methodsWe prospectively enrolled patients <21 years old with cCT and 3T MRI of the hips/pelvis. A dual-echo gradient-echo sequence was used to generate sCT via a commercially available post-processing software (BoneMRI v1.5 research version, MRIguidance BV, Utrecht, NL). Two pediatric musculoskeletal radiologists measured seven morphologic hip parameters. 3D surface distances between cCT and sCT were computed. Physeal status was established at seven locations with cCT as reference standard. Images were qualitatively scored on a 5-point Likert scale regarding diagnostic quality, signal-to-noise ratio, clarity of bony margin, corticomedullary differentiation, and presence and severity of artifacts. Quantitative evaluation of Hounsfield units (HU) was performed in bone, muscle, and fat tissue. Inter- and intraobserver reliability were measured by intraclass correlation coefficients. The cCT-to-sCT intermodal agreement was assessed via Bland-Altman analysis. The equivalence between modalities was tested using paired two one-sided tests. The quality parameter scores of each imaging modality were compared via Wilcoxon signed-rank test. For tissue-specific HU measurements, mean absolute error and mean percentage error values were calculated using the cCT as the reference standard.
resultsThirty-eight hips in 19 patients were included (16.6 ± 3 years, range 9.9-20.9; male = 5). cCT- and sCT-based morphologic measurements demonstrated good to excellent inter- and intraobserver correlation (0.77<ICC<0.98). Measurements were statistically equivalent (P < 0.05), with average intermodal differences <2°. Mean surface distance between cCT and sCT was 0.23 ± 0.18 mm. Accuracy to determine physeal maturity status by sCT was 98.4% (242/246, 95% CI 96.0-99.6). No significant differences were found on overall diagnostic quality, bony margin clarity, corticomedullary differentiation, and artifacts between sCT and cCT; signal-to-noise ratio was higher on sCT (P < 0.001). HU were within reference values on both sCT and cCT.
conclusionsCT is equivalent to cCT for the assessment of hip morphology, physeal status, and radiodensity assessment in pediatric patients.
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