Establishing Correlation Between Non-invasive Pulmonary Blood Pressure Readings and Swan-Ganz Results

Inclusion Criteria: * Heart Failure patient scheduled for right heart catheterization (Swan-Ganz) * Age range: 18 - 80 years * Pulmonary artery systolic pressure values ≤50 mmHg according to Swan - Ganz measurement * Able and willing to sign informed consent Exclusion Criteria: * History or current diagnosis of asthma or any other significant pulmonary disease * Jugular access site * Atrial fibrillation * Prior lung volume reduction surgery, lobectomy or pneumonectomy, or lung transplantation * Requirement for any ventilator support (including CPAP or BPAP) * Use of long-term oxygen therapy * Known upper airway obstruction * Known susceptibility to pneumothorax or pneumothorax in the medical history * Chest surgery or pacemaker implantation in the prior 6 months * Significant primary valvular disease * Major cardiovascular event within the prior 3 months * Current heavy smoker (more than one pack per day) * Any diagnosed respiratory tract infection (including upper respiratory tract), airway or lung disease or COPD exacerbation in the prior 3 months * Female patient pregnant or breast-feeding or planning to be pregnant in the next year * Diagnosis of Obstructive Sleep Apnea * Unexplained muscle weakness. Unable to comfortably lie down for 30 minutes * Current hospitalization due to CHF deterioration * Patients with a Body Mass Index (BMI) ≥ 40kg/m2 * Any condition that the PI believes could interfere with the intent of the study or would make participation not in the best interest of the patient