A portable cardiac mapping system is used to improve the accuracy of diagnosis of
acute ischaemic injury outside hospital. Patients presenting chest pain suggestive
of myocardial infarction (Ml) were mapped by attendant medical personnel operating
from a mobile coronary unit. These first Ml maps were compared against average normal
maps using QRS and ST-T isointegral values. Discriminant function analysis performed
on the parameters achieved a sensitivity of 90% and a specificity of 96%.
Keywords
Cardiac Mapping - Ischaemic Injury - Isointegrals - Discriminant Function Analysis