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In a nutshell; Heart rate is a measurement of any beating/contraction of the heart, no matter how forceful the contraction or how much/little volume of fluid (blood) is shifted. Pulse rate is a measurement of beating/contraction of the heart which produces enough pressure (ie, is forceful enough/moves enough fluid to the peripheries) for the pulse to be palpable. Heart rate = ANY heart beat Pulse rate = ONLY heart beats which are strong enough to be felt way out at your wrist/knee/ankle, etc. A good example to illustrate this point is a group of conditions called Supra-Ventricular Tachycardias (SVTs). In SVTs (due to lots of varied reasons) your heart beats much faster than it normally would, this is shown as an increased Heart rate. However, due to the pace of the heart's beating, it doesn't have enough time to completely refill with blood like it normally would. So, whenever # the heart beats (in SVTs), only a small amount of blood is pushed out, not nearl

Non-invasive cardiologists provide expertise in the detection and treatment of heart disease. Non-invasive cardiology involves tests to evaluate and diagnose disorders of the heart. A person with a history of heart disease, chest pain with unknown cause or valvular heart disease may be referred for non-invasive evaluation [From: http://www.catholicmedicalcenter.org/Programs/Non-Invasive-Cardiology.aspx] Invasive cardiology is a special aspect of cardiology that uses invasive procedures to treat heart disease. These procedures generally require insertion of instruments through the skin and into the body to treat a problem - thus the term "invasive." Many of the procedures done in this exciting field can be lifesaving.

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