Could you help me to understand what midshaft means in cardiology?

In cardiology, "midshaft" typically refers to the midsection of a blood vessel, such as an artery or vein, particularly when discussing the location of a blockage or lesion. It is often used in the context of imaging studies or interventions, where the midshaft of a vessel is assessed for disease or abnormalities. Understanding this term is crucial for diagnosing and treating cardiovascular conditions effectively.