 In a prospective study of 253 LUS examinations performed for unexplained deterioration of arterial blood gases, the management was changed directly as a result of information provided by the LUS in 119 out of 253 cases (47%) [3]. In a study by Phillips and Manning [4], a total of 102 chest radiographs and pocket US examinations were performed in 66 patients in the coronary care unit. The pocket US demonstrated overall good concordance with chest radiographs ranging from 77% for pleural effusion to 92% for pneumonia. Additionally, the pocket US examination appeared to anticipate resolution of pulmonary edema prior to the chest radiographs. Compared with transthoracic echocardiography, pocket US had excellent sensitivity for cardiac findings with values ranging from 85% for left atrial enlargement to 100% for cardiomegaly but had limited specificity of cardiomegaly at just 51% [4]. A meta-analysis that included 10 full-text studies that included 543 patients in evaluating the diagnostic accuracy of chest radiographs, and when concomitantly studied LUS, in comparison with CT as the reference standard, for Intensive Care Unit Patients OR Discussion of Procedures by Variant Variant 1: Admission or transfer to intensive care unit. Initial imaging. Radiography Chest Portable The strategy of ordering daily routine chest radiographs for critically ill and mechanically ventilated patients is slowly changing from daily chest radiographs to on-demand radiographs only. In a study evaluating the practice of chest radiographs in a Dutch ICU by Tolsma et al [6], 61% of the responding ICUs were said to never perform chest radiographs on a routine basis and that only 7% of responding ICUs were currently performing daily routine chest radiographs for all patients.
Intensive Care Unit Patients.  In a prospective study of 253 LUS examinations performed for unexplained deterioration of arterial blood gases, the management was changed directly as a result of information provided by the LUS in 119 out of 253 cases (47%) [3]. In a study by Phillips and Manning [4], a total of 102 chest radiographs and pocket US examinations were performed in 66 patients in the coronary care unit. The pocket US demonstrated overall good concordance with chest radiographs ranging from 77% for pleural effusion to 92% for pneumonia. Additionally, the pocket US examination appeared to anticipate resolution of pulmonary edema prior to the chest radiographs. Compared with transthoracic echocardiography, pocket US had excellent sensitivity for cardiac findings with values ranging from 85% for left atrial enlargement to 100% for cardiomegaly but had limited specificity of cardiomegaly at just 51% [4]. A meta-analysis that included 10 full-text studies that included 543 patients in evaluating the diagnostic accuracy of chest radiographs, and when concomitantly studied LUS, in comparison with CT as the reference standard, for Intensive Care Unit Patients OR Discussion of Procedures by Variant Variant 1: Admission or transfer to intensive care unit. Initial imaging. Radiography Chest Portable The strategy of ordering daily routine chest radiographs for critically ill and mechanically ventilated patients is slowly changing from daily chest radiographs to on-demand radiographs only. In a study evaluating the practice of chest radiographs in a Dutch ICU by Tolsma et al [6], 61% of the responding ICUs were said to never perform chest radiographs on a routine basis and that only 7% of responding ICUs were currently performing daily routine chest radiographs for all patients.