Clinical Utility of Portable Dynamic Chest X Ray (DDR) in the ICU

Inclusion Criteria: Participants must meet all the following inclusion criteria to participate in this study: * Adults (at least 18 years of age) including both intubated/ventilated and non-intubated patients * Likely to have pathology related to either, abnormal diaphragmatic excursion and lung aeration, pulmonary perfusion, increased lung water content or all the above, as well as for cricopharyngeal dysfunction/swallowing difficulties at risk for aspiration. * The subject or a legally authorized representative has provided written informed consent. Exclusion Criteria: Candidates meeting any of the exclusion criteria at baseline will be excluded from study participation. These criteria are: * Special populations, including women with known pregnancy, prisoners, or institutionalized individuals * Patients where additional radiation is clinically contraindicated * Care team does not provide assent for approaching patient/surrogate * For women of child-bearing potential, defined as premenopausal women, a pregnancy test will be administered to determine pregnancy status and confirm eligibility for the study. A pregnancy test will NOT be administered to women who are post-menopausal or have documentation of surgical sterilization.