My images suggest apical septal ischemia?

Septal ischemia: It is suggestive of you have high likelihood of having coronary artery disease (block in heart artery). Management (medical therapy vs invasive method) depends on size of the defect and burden of ischemia. Consult your physician.

Ischemia...: Although people have varying coronary anatomy, the septum and apex are most commonly supplied by the left anterior descending (lad) artery. Usually ischemia is characterized by extent, severity, and degree of reversibility. For mild ischemia, sometimes medical management is the appropriate treatment. For extensive, severe ischemia, a more invasive procedure may be necessary. See your doctor.

Arterial blockage.: Ischemia in areas of the heart, as you have related, infers that the arteries that feed these parts of the heart are narrowed such that blood flow through them reduces with exertion. It means these areas of the heart are vulnerable and further testing is needed and intervention may be necessary.