Fig. 4

Relationship between %ΔLVEDV, %ΔLVESV and %ΔLVEF. The vertical dashed lines represent the cut-off values of +12 and −12% change in LVEDV and the horizontal dashed lines represent +12 and −12% %ΔLVESV. Patients were divided into 3 groups for %ΔLVEF based on the MDC95 cut-off of 13%, namely: blue circles - no change in LVEF at follow-up; green circles - increase in LVEF at follow-up compared to acute scan; red circles - decrease in LVEF at follow-up compared to acute scan. Those with a reduction in LVEF at follow-up were more likely to have an increase in both LVEDV and LVESV, and tended to be in the right upper quadrant (RUQ) of the graph. Those with an improvement in LVEF were more likely to have a reduction in LVESV and LVEDV and tended to be in the middle lower quadrant (MLQ) and left lower quadrant (LLQ) of the graph. Some patients had an increase in LVEDV only with or without an improvement in LVEF, and tended to lie in the right middle quadrant (RMQ) of the graph. Those in the middle quadrant (MQ) of the graph had no change in LVEDV or LVESV and predominantly no change in LVEF