Low field thoracic MRI—a fast and radiation free routine imaging modality in children

Wagner, M.; Böwing, B.; Kuth, Rainer; Deimling, M.; Rascher, Wolfgang; Rupprecht, Thomas

doi:10.1016/s0730-725x(01)00417-9

Cited by 29 publications

(23 citation statements)

References 22 publications

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“…This information might be important, for example in patients scheduled for lung transplantation with widespread pleural thickening. Furthermore, as previously reported [23,26], a number of additional findings may be provided by MRI data. These may or may not be related to CF.…”

Section: Discussionmentioning

confidence: 75%

“…We decided to use the Chrispin-Norman chest radiograph scoring system [6] because it was developed for children, has a low interobserver variability [25], and the pathologic findings listed within this scoring system can be detected on CXR as well as on MRI scans [26]. One limitation of the comparative CN-score evaluation of CXR and MRI, however, is the need to average the CN score of MRI in every lung quadrant in several coronal slices.…”

Section: Discussionmentioning

confidence: 99%

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Comparative evaluation of chest radiography, low-field MRI, the Shwachman-Kulczycki score and pulmonary function tests in patients with cystic fibrosis

et al. 2008

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The aim of this study was to investigate whether the parenchymal lung damage in patients suffering from cystic fibrosis (CF) can be equivalently quantified by the Chrispin-Norman (CN) scores determined with low-field magnetic resonance imaging (MRI) and conventional chest radiography (CXR). Both scores were correlated with pulmonary function tests (PFT) and the Shwachman-Kulczycki method (SKM). To evaluate the comparability of MRI and CXR for different states of the disease, all scores were applied to patients divided into three age groups. Seventy-three CF patients (mean SKM score: 62 +/- 8) with a median age (range) of 14 years (7-32) were included. The mean CN scores determined with both imaging methods were comparable (CXR: 12.1 +/- 4.7; MRI: 12.0 +/- 4.5) and showed high correlation (P < 0.05, R = 0.97). Only weak correlations were found between imaging, PFT, and SKM. Both imaging modalities revealed significantly more severe disease expression with age, while PFT and SKM failed to detect early signs of disease. We conclude that imaging of the lung in CF patients is capable of detecting subtle and early parenchymal destruction before lung function or clinical scoring is affected. Furthermore, low-field MRI revealed high consistency with chest radiography and may be used for a thorough follow-up while avoiding radiation exposure.

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Section: Discussionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Comparative evaluation of chest radiography, low-field MRI, the Shwachman-Kulczycki score and pulmonary function tests in patients with cystic fibrosis

et al. 2008

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“…Indications such as lesion characterization-that is, distinguishing inflammation from fibrosis or tumor from necrotic tissue-warrant investigation (13)(14)(15). MR imaging may be particularly valuable for clinical assessment purposes-for example, in assessing the control of disease progression and the effects of therapy in children without radiation exposure (16,17). Improved MR imaging techniques may even be explored as alternative methods in lung cancer screening programs (2,18 -21).…”

mentioning

confidence: 99%

Simulated Pulmonary Nodules Implanted in a Dedicated Porcine Chest Phantom: Sensitivity of MR Imaging for Detection

Biederer

Schoene²,

Freitag³

et al. 2003

Radiology

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“…A recent publication points to the increasing opportunities of MRI in the diagnostics of patients with pacemakers, especially at lowfield systems [20]. Currently, some institutions utilize low-field MRI using True-FISP techniques for detection and follow-up of pneumonias and mediastinal pathologies in children [21]. The authors describe the application of varying slice thicknesses of up to 300 mm, mainly to shorten the AT and to increase the SNR.…”

Section: Discussionmentioning

confidence: 99%

MR imaging of lung parenchyma at 0.2�T: evaluation of imaging techniques, comparative study with chest radiography and interobserver analysis

et al. 2004

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The purpose of this study was to evaluate low-field MR imaging of the lung parenchyma in comparison with postero-anterior (PA) and lateral chest radiographs (CR). One hundred one prospectively randomized patients who had received routine CR were additionally examined with magnetic resonance imaging (MRI) at 0.2 T. Utilized sequences were: constructive interference in steady state (CISS), true fast imaging in steady state precession (True-FISP) and T1-weighted spin-echo (T1SE). Consensus reading of two observers was performed for CR. Three other observers analyzed hardcopies of the MRI examinations for each sequence independently. The individual results for the comparisons between the sequences and CR were calculated using kappa coefficients with their corresponding confidence intervals. Additionally, an interobserver analysis was performed. The proportions of agreement for the three sequences compared with CR were high, with 0.93 for CISS, 0.89 for True-FISP and 0.91 for T1SE. The kappa coefficients and the corresponding confidence intervals were 0.81 [0.68; 0.95] for CISS, 0.72 [0.57; 0.88] for True-FISP and 0.78 [0.65; 0.92] for T1SE. Concerning CISS, differences between MRI and CR were mainly related to advantages resulting from cross-sectional imaging. The smallest 95% lower confidence bound of the three kappa measures for comparing the MR readers with each other was 0.97, indicating a high interobserver agreement. Low-field MRI of the lung parenchyma using the CISS sequence is well comparable with chest radiography and demonstrates slight advantages resulting from the cross-sectional imaging technique.

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Low field thoracic MRI—a fast and radiation free routine imaging modality in children

Cited by 29 publications

References 22 publications

Comparative evaluation of chest radiography, low-field MRI, the Shwachman-Kulczycki score and pulmonary function tests in patients with cystic fibrosis

Comparative evaluation of chest radiography, low-field MRI, the Shwachman-Kulczycki score and pulmonary function tests in patients with cystic fibrosis

Simulated Pulmonary Nodules Implanted in a Dedicated Porcine Chest Phantom: Sensitivity of MR Imaging for Detection

MR imaging of lung parenchyma at 0.2�T: evaluation of imaging techniques, comparative study with chest radiography and interobserver analysis

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