This example shows the representation of circumferential and longitudinal strain findings in the CV domain. The sponsor used the "CMRBRANDTYP Feature Tracking" analysis method (CVANMETH).
Feature Tracking- make is generic (specify the software program used - Medis/Circle/HeartIT as example, add more)
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- Is row 4 to delineate between 2D/3D/4D strain analysis LV chamber views? no
- Question for Jon Neville - does ANMETH fit for the place to put the chamber view ofr the MR visualization? - not the right analysis method. The analysis method is related to the intrinsic algorithm performed by the MRI/CMR machine. It is important to know what method was used. These are types of "Feature Tracking".
- Would it be better to show one segment across the different dimensional chamber views at 2 or 3 timepoints? 1, 2, 5 yr point - could do one with change and one without change. Whenever do an MRI - do this; all data can allow feature tracking strain
- Is there a best terminology to use for the dimensions? check CT, 2D, 3D, 4D OR two-dimensional, three-dimensional, four-dimensional (2D is peak radial strain; 3D is peak circumferential strain, 4D is peak longitudinal strain..... is "peak" assumed or does that need to be there?)- not out clinically, more experimentally.
- What test is used to measure fibrosis - is it LGE or strain? May use strain if you think may see... LGE is the answer. Strain is a marker of actual function. It worsens before the LVEF
- (normal - -18 to 20) - -9 is poor
- The LV Global is the average of base/mid/apex circumferential readings/values.
- Longitudinal strain normal is -18%
- LV Global Longitudinal strain is the average of LV 4, 3, 2 chamber readings/values
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-20 is a good result, -10 is a poor result. Could show change over time with first assessment normal, one example could have poor 1 year follow-up and the other can have stable cardiomyopathy disease. Or could just do this.
| Dataset wrap |
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| Rowcaps |
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| Rows 1-3: | Show circumferential strain |
with a 3 dimensional chamber view (CVANMETH) of the left ventricular basal anterior segment, left ventricular basal anteroseptal segment, and left ventricular basal inferoseptal segment (CVLOC)| for the left ventricle base, mid, and apex regions. | | Row 4: |
Rows 5-6| Shows circumferential strain for the LEFT VENTRICULAR BASAL INFEROSEPTAL SEGMENT. | | Row 5: | Shows global circumferential strain. | | Rows 6-8: | Show |
circumferential with a 4 dimensional chamber view of the left ventricular basal inferoseptal segment and the left ventricular mid inferoseptal segment| for 4 chamber, 3 chamber, and 2 chamber views. | | Row 9: | Shows longitudinal strain for the LEFT VENTRICULAR BASAL INFEROSEPTAL SEGMENT. | | Row 10: | Shows global longitudinal strain. |
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| Dataset2 |
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Row | STUDYID | DOMAIN | USUBJID | CVSEQ | CVTESTCD | CVTEST | CVORRES | CVORRESU | CVSTRESC | CVSTRESN | CVSTRESU | CVLOC | CVMETHOD | CVANMETH | CVLOBFXL | VISITNUM | VISIT | CVDTC |
| CVIMVIEW |
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| 1 | DMD-CLS | CV | DMD-CLS-01-401 | 1 | CFSTRAIN |
CIRCUMFERENTIAL STRAIN| Circumferential Strain | | % | | -9 | % |
LV HEART, LEFT VENTRICLE, BASE |
CARDIAC MAGNETIC RESONANCE IMAGING| MRI | CMRBRANDTYP Feature Tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 2 | DMD-CLS | CV | DMD-CLS-01-401 | 2 | CFSTRAIN |
CIRCUMFERENTIAL STRAIN| Circumferential Strain | | % | | -12 | % |
LV | HEART, LEFT VENTRICLE, MID |
CARDIAC MAGNETIC RESONANCE IMAGING| MRI | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 3 | DMD-CLS | CV | DMD-CLS-01-401 | 3 | CFSTRAIN |
CIRCUMFERENTIAL STRAIN| Circumferential Strain | | % | | -10 | % |
LV | HEART, LEFT VENTRICLE, APEX |
CARDIAC MAGNETIC RESONANCE IMAGING| MRI | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 4 | DMD-CLS | CV | DMD-CLS-01-401 | 4 | CFSTRAIN |
CIRCUMFERENTIAL STRAIN101010%LV Global | | 12 | % | LEFT VENTRICULAR BASAL INFEROSEPTAL SEGMENT | MRI |
CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 5 | DMD-CLS | CV | DMD-CLS-01-401 | 5 |
CFSTRAIN | | GCS | Global Circumferential Strain |
CIRCUMFERENTIAL STRAIN121212LEFT VENTRICULAR BASAL INFEROSEPTAL SEGMENT | CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 6 | DMD-CLS | CV | DMD-CLS-01-401 | 6 |
LNGSTRAINLONGITUDINAL STRAIN | CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature Tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
| 4-CHAMBER | | 7 | DMD-CLS | CV | DMD-CLS-01-401 | 7 |
LNGSTRAINLONGITUDINAL STRAIN | CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
| 3-CHAMBER | | 8 | DMD-CLS | CV | DMD-CLS-01-401 | 8 |
LNGSTRAINLONGITUDINAL STRAIN | CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
| 2-CHAMBER | | 9 | DMD-CLS | CV | DMD-CLS-01-401 | 9 |
LNGSTRAINLONGITUDINAL STRAIN181818LV Global | | LEFT VENTRICULAR BASAL INFEROSEPTAL SEGMENT | MRI |
CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING| VISIT 1 | 2023-09-01 |
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| | 10 | DMD-CLS | CV | DMD-CLS-01-401 | 10 |
LNGSTRAIN | | LGS | Global Longitudinal Strain |
LONGITUDINAL STRAIN141414LEFT VENTRICULAR 4 CHAMBER BASAL INFEROSEPTAL SEGMENT | CARDIAC MAGNETIC RESONANCE IMAGING | CMRBRANDTYP Feature tracking |
| 1 |
SCREENING |
| Nsvmeta |
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| Variable | Label | Type | Role | Origin |
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| Imaging View | text | Non-standard Record Qualifier | CRF |
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