Why the study?
Does spatial velocity ECG improve the detection of old myocardial infarctions compared to conventional ECG?
Does spatial velocity ECG improve the detection of old myocardial infarctions compared to conventional ECG?
Spatial velocity ECG may serve as a useful supportive diagnostic tool for identifying old myocardial infarctions, particularly when conventional ECG is non-diagnostic.
May aid old MI detection when conventional ECG is normal; hypothesis-generating and requires prospective validation before use.
Spatial velocity ECG is a record of the speed of inscription of spatial vector loops on the linear time scale. There was definite pattern in normal spatial velocity ECG in spite of the wide varieties of configurations of VCG loops. High incidences of abnormalities were observed on the initial portions of QRS waves of spatial velocity ECG in old myocardial infarctions, even in the cases whose conventional ECG did not satisfy the criteria of abnormal Q waves. Thus the spatial velocity ECG was considered as a useful supportive measure in diagnosing old myocardial infarctions.
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Hiroyoshi Mori (1971) studied this question.
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