Precision of pulmonary vein diameter measurements assessed by CE-MRA and steady-state-free precession imaging
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Precision of pulmonary vein diameter measurements assessed by CE-MRA and steady-state-free precession imaging. / Groth, Michael; Bannas, Peter; Regier, Marc; Buhk, Jan-Hendrik; Müllerleile, Kai; Adam, Gerhard; Henes, Frank O.
In: EUR RADIOL, Vol. 23, No. 6, 01.06.2013, p. 1546-52.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Precision of pulmonary vein diameter measurements assessed by CE-MRA and steady-state-free precession imaging
AU - Groth, Michael
AU - Bannas, Peter
AU - Regier, Marc
AU - Buhk, Jan-Hendrik
AU - Müllerleile, Kai
AU - Adam, Gerhard
AU - Henes, Frank O
PY - 2013/6/1
Y1 - 2013/6/1
N2 - OBJECTIVE: Pulmonary vein (PV) diameter assessment is important for planning and follow-up of PV ablation in atrial fibrillation. Therefore, the aim of our study was to evaluate inter- and intraobserver reliability of PV diameter measurements by contrast-enhanced magnetic resonance angiography (CE-MRA) and ECG-gated 2D multislice unenhanced steady-state-free precession sequences (multislice SSFP).METHODS: Sixty PV diameters in 17 consecutive patients were measured in transverse and coronal orientation with CE-MRA and multislice SSFP by two observers. Statistics to evaluate inter- and intraobserver reliability included Bland-Altman analysis and F-test.RESULTS: Intraobserver limits of agreement (LAG) ranged between ±0.50 cm (transverse) and ±0.86 cm (coronal) for CE-MRA versus ±0.40 cm (transverse) and ±0.67 cm (coronal) for multislice SSFP. Interobserver agreement showed LAG ranging between ±0.59 cm (transverse) and ±0.83 cm (coronal) for CE-MRA versus ±0.34 cm (transverse) and ±0.75 cm (coronal) for multislice SSFP. Intra- and interobserver variances did not reveal significant differences between CE-MRA and multislice SSFP in any orientation (all p-values >0.05).CONCLUSION: Multislice SSFP and CE-MRA enable comparable precision of PV diameter measurements. However, both methods reveal a wide range of intra- and interobserver agreement, which has to be thoroughly considered in clinical use. KEY POINTS : • Unenhanced magnetic resonance imaging can now provide measurement of pulmonary vein diameters • Steady-state-free precession offers a new method of performing unenhanced MR imaging • Both unenhanced and enhanced MRI measurements show wide intra- and interobserver variation • PV diameter measurements assessed by MRI have to be interpreted with care • Nevertheless, unenhanced MRI might replace some CT examinations for pulmonary vein demonstration.
AB - OBJECTIVE: Pulmonary vein (PV) diameter assessment is important for planning and follow-up of PV ablation in atrial fibrillation. Therefore, the aim of our study was to evaluate inter- and intraobserver reliability of PV diameter measurements by contrast-enhanced magnetic resonance angiography (CE-MRA) and ECG-gated 2D multislice unenhanced steady-state-free precession sequences (multislice SSFP).METHODS: Sixty PV diameters in 17 consecutive patients were measured in transverse and coronal orientation with CE-MRA and multislice SSFP by two observers. Statistics to evaluate inter- and intraobserver reliability included Bland-Altman analysis and F-test.RESULTS: Intraobserver limits of agreement (LAG) ranged between ±0.50 cm (transverse) and ±0.86 cm (coronal) for CE-MRA versus ±0.40 cm (transverse) and ±0.67 cm (coronal) for multislice SSFP. Interobserver agreement showed LAG ranging between ±0.59 cm (transverse) and ±0.83 cm (coronal) for CE-MRA versus ±0.34 cm (transverse) and ±0.75 cm (coronal) for multislice SSFP. Intra- and interobserver variances did not reveal significant differences between CE-MRA and multislice SSFP in any orientation (all p-values >0.05).CONCLUSION: Multislice SSFP and CE-MRA enable comparable precision of PV diameter measurements. However, both methods reveal a wide range of intra- and interobserver agreement, which has to be thoroughly considered in clinical use. KEY POINTS : • Unenhanced magnetic resonance imaging can now provide measurement of pulmonary vein diameters • Steady-state-free precession offers a new method of performing unenhanced MR imaging • Both unenhanced and enhanced MRI measurements show wide intra- and interobserver variation • PV diameter measurements assessed by MRI have to be interpreted with care • Nevertheless, unenhanced MRI might replace some CT examinations for pulmonary vein demonstration.
KW - Adult
KW - Aged
KW - Atrial Fibrillation
KW - Cohort Studies
KW - Constriction, Pathologic
KW - Contrast Media
KW - Electrocardiography
KW - Female
KW - Humans
KW - Image Processing, Computer-Assisted
KW - Magnetic Resonance Angiography
KW - Male
KW - Middle Aged
KW - Observer Variation
KW - Pulmonary Veins
KW - Reproducibility of Results
KW - Retrospective Studies
U2 - 10.1007/s00330-012-2752-3
DO - 10.1007/s00330-012-2752-3
M3 - SCORING: Journal article
C2 - 23255176
VL - 23
SP - 1546
EP - 1552
JO - EUR RADIOL
JF - EUR RADIOL
SN - 0938-7994
IS - 6
ER -