MRI
The module MRI is used to document analyzing parameters of cardiac magnetic resonance imaging examinations.
These examinations ought to be performed according to DZHK-SOP-K-06 .
These examinations ought to be performed according to DZHK-SOP-K-06 .
Content
Examination details
Was the MRI performed
Fieldname: mrt_janein
Data type: String with following options
yes
no
unknown
not assessed
Date of examination
Fieldname: mrt_date Data type: Timestamp with day, month and year
Quality level
DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
- Level 1: The examination is performed in accordance with the guidelines of the medical associations.
- Level 2: The examination is performed in accordance with the specifications of the DZHK SOP. Minimum requirements to ensure the quality of the implementation and the examiners are defined in the SOP.
- Level 3: The examination is performed in accordance with the specifications of the DZHK SOP and certification of the examiners: Definition of intr-observer and interobserver-variability (standard of epidemiological studies).
Fieldname: mrt_qualitaet
Data type: Integer with following options
1
2
3
Module left and right ventricular functional test
1. Localiser in all 3 patient axes (transaxial, coronal, sagittal) 2. Short axis scout 3. Alignment and measurement of 2-chamber, 3-chamber, 4-chamber view, short axis stack, right ventricular 2-chamber view Manual alignment is outlined below; however, automatic algorithms such as the three-point method can also be applied.
DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
Cine 4-chamber view
The 4-chamber view is aligned on the short axis localiser and also using the 2-chamber view, whereby it must be ensured that the alignment runs through the tip of the 2-chamber view and verified on the short axis localiser that the left ventricular outflow tract is not included on the image.DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
Diameter of the right ventricle
Fieldname: mrt_4kamdiamrechven Data type: Integer with maximum 3 digits in mm
Diameter of the right atrium
Fieldname: mrt_4kamdiamrechvor Data type: Integer with maximum 3 digits in mm
MAPSE
Fieldname: mrt_4kammapse Data type: Integer with maximum 2 digits in mm
TAPSE
Fieldname: mrt_4kamtapse Data type: Integer with maximum 2 digits in mm
Maximum left atrial area
Fieldname: mrt_4kammaxlinkvor Data type: Integer with maximum 3 digits in cm2
Minimum left atrial area
Fieldname: mrt_4kamminlinkvor Data type: Integer with maximum 2 digits in cm2
Maximum length of the axis of the left atrium
Fieldname: mrt_4kammaxachs Data type: Integer with maximum 3 digits in mm
Minimum length of the axis of the left atrium
Fieldname: mrt_4kamminachs Data type: Integer with maximum 3 digits in mm
Cine 2-chamber view
The 2-chamber view is aligned on the axial localiser through the centre of the mitral valve and the tip of the left ventricle.DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
Maximum left atrial area
Fieldname: mrt_2kammaxvorh Data type: Integer with maximum 3 digits in cm2
Minimum left atrial area
Fieldname: mrt_2kamminvorh Data type: Integer with maximum 2 digits in cm2
Maximum length of the axis of the left atrium
Fieldname: mrt_2kammaxachs Data type: Integer with maximum 3 digits in mm
Minimum length of the axis of the left atrium
Fieldname: mrt_2kamminachs Data type: Integer with maximum 3 digits in mm
Short-axis multislice cine
The short axis stack is aligned in diastole. The first layer should be located inside the left atrium and the last layer outside the left ventricle. The short axis stack is aligned such that a connection between the AV grooves (white line) can be created at the height of the mitral and tricuspid valve. The remaining short axes cover the entire left and right ventricle up to the apex of the heart and are parallel to the initial short axis.DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
Basal septum
Fieldname: mrt_multislicebassept Data type: Integer with maximum 2 digits in mm
Basal lateral wall
Fieldname: mrt_multislicebaslat Data type: Integer with maximum 2 digits in mm
Left ventricular end-diastolic diameter (LVEDD)
Fieldname: mrt_multslicelvedd Data type: Integer with maximum 3 digits in mm
Left ventricular end-systolic diameter (LVESD)
Fieldname: mrt_multslicelvesd Data type: Integer with maximum 3 digits in mm
Left ventricular ejection fraction (LV-EF)
Fieldname: mrt_multslicelvef Data type: Integer with maximum 2 digits in %
Left ventricular end-diastolic volume index (LV-EDVI)
Fieldname: mrt_multslicelvedvi Data type: Integer with maximum 3 digits in ml/m2
Left ventricular end-systolic volume index (LV-ESVI)
Fieldname: mrt_multslicelvesvi Data type: Integer with maximum 3 digits in ml/m2
Left ventricular stroke volume index (LV-SVI)
Fieldname: mrt_multslicelvsvi Data type: Integer with maximum 3 digits in ml/m2
Indexed left ventricular mass (LV mass/ body surface)
Fieldname: mrt_multslicelvmasse Data type: Integer with maximum 3 digits in g/m2
Right ventricular ejektion fraction (RV-EF)
Fieldname: mrt_multslicervef Data type: Integer with maximum 2 digits in %
Right ventricular end-diastolic volume index (RV-EDVI)
Fieldname: mrt_multslicervedvi Data type: Integer with maximum 3 digits in ml/m2
Right ventricular end-systolic volume index (RV-ESVI)
Fieldname: mrt_multslicervesvi Data type: Integer with maximum 3 digits in ml/m2
Right ventricular stroke volume index (RV-SVI)
Fieldname: mrt_multslicervsvi Data type: Integer with maximum 3 digits in ml/m2
Examination details (Late Gadolinium Enhancement (LGE))
Wait 10 minutes after injecting the contrast agent. The contrast agent to be used (volume and type depending on relaxivity) are defined specifically for each study. The injection rate (flow rate) is also adjusted accordingly. TI-Scout to determine the zero-crossing point of the signal of the healthy myocardium. Position the TI-Scout in the mid-ventricular short axis. Recording of the late gadolinium enhancement images of all short axes, of the 2 left and right ventricular 2-chamber views, of the 3-chamber view and of the 4-chamber view (in doing so, the alignment should correspond to that of the functional test). DZHK-SOP-K-06: Cardiac Magnetic resonance imaging, Version: V1.0, Valid as of: 01.09.2014
LGE in AHA 17-segment model infarction-typical
Fieldname: mrt_lgeaha17
Data type: String with following options
yes
no
unknown
not assessed