BACKGROUND: Although CT is the modality of choice for morphological lung imaging, an increasing proportion of chest imaging is performed by MRI due to the utilization of whole-body MRI. Therefore, the diagnostic performance of MRI in reliably detecting pulmonary lesions should be established. PURPOSE: To investigate the detection rate of pulmonary lesions by MRI that can be expected in a clinical setting and to assess the accuracy of lesion measurement by MRI compared to CT. MATERIAL AND METHODS: Twenty-eight patients (median age 66 years) with indication for CT imaging due to suspected thoracic malignancy were prospectively included. Chest MRI performed on the same day as CT, comprised unenhanced TrueFisp, ecg-gated T2-weighted HASTE, T1-weighted VIBE, and contrast-enhanced T1-weighted, fat-saturated VIBE sequences. MR sequences were evaluated for lesion detection by two readers independently and measurement of lesion size was performed. MR findings were correlated with CT. RESULTS: One hundred and eight pulmonary lesions (20 thoracic malignancies, 88 lung nodules) were detected by CT in 26 patients. Lesions were ruled out in two patients. All thoracic malignancies were identified by MRI with strong correlation (r = 0.97-0.99; P < 0.01) in lesion size measurement compared to CT. Unenhanced, T1-weighted VIBE correctly classified 94% of thoracic malignancies into T-stages. Contrast-enhanced, T1-weighted VIBE performed best in identifying 36% of lung nodules, 40% were detected combining unenhanced and contrast-enhanced T1-weighted VIBE. Detection rate increased to 65% for the combined sequences regarding lesions ≥5 mm. Lesion size measurement by all MR sequences strongly correlated with CT (r = 0.96-0.97; P = 0.01). CONCLUSION: MRI is as accurate as CT in detection and size measurement of primary thoracic malignancies >1 cm in diameter. If a lung lesion is detected by MRI, it is a reliable finding and its measurement is accurate. CT remains superior in detecting small lung nodules (<6 mm). Detection rate of MRI for small lesions is improved using a multi-sequence protocol including contrast administration.
BACKGROUND: Although CT is the modality of choice for morphological lung imaging, an increasing proportion of chest imaging is performed by MRI due to the utilization of whole-body MRI. Therefore, the diagnostic performance of MRI in reliably detecting pulmonary lesions should be established. PURPOSE: To investigate the detection rate of pulmonary lesions by MRI that can be expected in a clinical setting and to assess the accuracy of lesion measurement by MRI compared to CT. MATERIAL AND METHODS: Twenty-eight patients (median age 66 years) with indication for CT imaging due to suspected thoracic malignancy were prospectively included. Chest MRI performed on the same day as CT, comprised unenhanced TrueFisp, ecg-gated T2-weighted HASTE, T1-weighted VIBE, and contrast-enhanced T1-weighted, fat-saturated VIBE sequences. MR sequences were evaluated for lesion detection by two readers independently and measurement of lesion size was performed. MR findings were correlated with CT. RESULTS: One hundred and eight pulmonary lesions (20 thoracic malignancies, 88 lung nodules) were detected by CT in 26 patients. Lesions were ruled out in two patients. All thoracic malignancies were identified by MRI with strong correlation (r = 0.97-0.99; P < 0.01) in lesion size measurement compared to CT. Unenhanced, T1-weighted VIBE correctly classified 94% of thoracic malignancies into T-stages. Contrast-enhanced, T1-weighted VIBE performed best in identifying 36% of lung nodules, 40% were detected combining unenhanced and contrast-enhanced T1-weighted VIBE. Detection rate increased to 65% for the combined sequences regarding lesions ≥5 mm. Lesion size measurement by all MR sequences strongly correlated with CT (r = 0.96-0.97; P = 0.01). CONCLUSION: MRI is as accurate as CT in detection and size measurement of primary thoracic malignancies >1 cm in diameter. If a lung lesion is detected by MRI, it is a reliable finding and its measurement is accurate. CT remains superior in detecting small lung nodules (<6 mm). Detection rate of MRI for small lesions is improved using a multi-sequence protocol including contrast administration.
Authors: Allison F O'Neill; Jason L J Dearling; Yuchuan Wang; Tanya Tupper; Yanping Sun; Jon C Aster; Monica L Calicchio; Antonio R Perez-Atayde; Alan B Packard; Andrew L Kung Journal: Clin Cancer Res Date: 2013-11-11 Impact factor: 12.531
Authors: Allison F O'Neill; Alexander J Towbin; Mark D Krailo; Caihong Xia; Yun Gao; M Beth McCarville; Rebecka L Meyers; Eugene D McGahren; Greg M Tiao; Stephen P Dunn; Max R Langham; Christopher B Weldon; Milton J Finegold; Sarangarajan Ranganathan; Wayne L Furman; Marcio Malogolowkin; Carlos Rodriguez-Galindo; Howard M Katzenstein Journal: J Clin Oncol Date: 2017-09-11 Impact factor: 44.544
Authors: Jonathan C L Rodrigues; Stephen M Lyen; William Loughborough; Antonio Matteo Amadu; Anna Baritussio; Amardeep Ghosh Dastidar; Nathan E Manghat; Chiara Bucciarelli-Ducci Journal: J Cardiovasc Magn Reson Date: 2016-05-09 Impact factor: 5.364
Authors: Nina F Schwenzer; Ferdinand Seith; Sergios Gatidis; Cornelia Brendle; Holger Schmidt; Christina A Pfannenberg; Christian laFougère; Konstantin Nikolaou; Christina Schraml Journal: Korean J Radiol Date: 2016-08-23 Impact factor: 3.500
Authors: Madeleine Bonert; Moritz Schneider; Olga Solyanik; Katharina Hellbach; David Bondesson; Thomas Gaass; Natalie Thaens; Jens Ricke; Thomas Benkert; Julien Dinkel Journal: PLoS One Date: 2020-12-23 Impact factor: 3.240
Authors: Andrzej Cieszanowski; Antonina Lisowska; Marta Dabrowska; Piotr Korczynski; Malgorzata Zukowska; Ireneusz P Grudzinski; Ryszard Pacho; Olgierd Rowinski; Rafal Krenke Journal: PLoS One Date: 2016-06-03 Impact factor: 3.240