Rhc Lhc. Although several tests such as an echocardiogram may suggest a diagnosis of pulmonary hypertension a right heart catheterization rhc is the only way of accurately measuring the pulmonary artery pressures and officially diagnosing pulmonary arterial hypertension. It is done to diagnose or treat certain heart problems.
Rhcs are also often done after diagnosis as a way to monitor. Lhc rhc lhc pol p p p η 6 where p is radiated power calculated by integrating the feed s farfield pattern over the sphere. Reverse recovery time t rr fig 4 100 nanosec max.
Calculations were performed by cst microwave studio 4 and matlab 5 software.
Rhcs are also often done after diagnosis as a way to monitor. There are three different gains on the antenna. 1 lists calculated polarization efficiencies for various feeds. A diagnostic rhc procedure is coded to icd 10 pcs 4a023n6 measurement of cardiac sampling and pressure right heart percutaneous approach.