{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T00:14:04Z","timestamp":1777853644164,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"10","license":[{"start":{"date-parts":[[2018,10,22]],"date-time":"2018-10-22T00:00:00Z","timestamp":1540166400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Intensive Care Med"],"published-print":{"date-parts":[[2020,10]]},"abstract":"<jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>Computed tomography angiography is limited in the intensive care unit (ICU) due to renal insufficiency, hemodynamic instability, and difficulty transporting unstable patients. A portable ventilation\/perfusion (V\/Q) scan can be used. However, it is commonly believed that an abnormal chest radiograph can result in a nondiagnostic scan. In this retrospective study, we demonstrate that portable V\/Q scans can be helpful in ruling in or out clinically significant pulmonary embolism (PE) despite an abnormal chest x-ray in the ICU.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design:<\/jats:title>\n                    <jats:p>Two physicians conducted chart reviews and original V\/Q reports. A staff radiologist, with 40 years of experience, rated chest x-ray abnormalities using predetermined criteria.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Setting:<\/jats:title>\n                    <jats:p>The study was conducted in the ICU.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patients:<\/jats:title>\n                    <jats:p>The first 100 consecutive patients with suspected PE who underwent a portable V\/Q scan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Interventions:<\/jats:title>\n                    <jats:p>Those with a portable V\/Q scan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>A normal baseline chest radiograph was found in only 6% of patients. Fifty-three percent had moderate, 24% had severe, and 10% had very-severe radiographic abnormalities. Despite the abnormal x-rays, 88% of the V\/Q scans were low probability for a PE despite an average abnormal radiograph rating of moderate. A high-probability V\/Q for PE was diagnosed in 3% of the population despite chest x-ray ratings of moderate to severe. Six patients had their empiric anticoagulation discontinued after obtaining the results of the V\/Q scan, and no anticoagulation was started for PE after a low-probability V\/Q scan.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Despite the large percentage of moderate-to-severe x-ray abnormalities, PE can still be diagnosed (high-probability scan) in the ICU with a portable V\/Q scan. Although low-probability scans do not rule out acute PE, it appeared less likely that any patient with a low-probability V\/Q scan had severe hypoxemia or hemodynamic instability due to a significant PE, which was useful to clinicians and allowed them to either stop or not start anticoagulation.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/0885066618807859","type":"journal-article","created":{"date-parts":[[2018,10,23]],"date-time":"2018-10-23T01:22:00Z","timestamp":1540257720000},"page":"1032-1038","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Portable Ventilation\/Perfusion Scanning is Useful for Evaluating Clinically Significant Pulmonary Embolism in the ICU Despite Abnormal Chest Radiography"],"prefix":"10.1177","volume":"35","author":[{"given":"Aaron S.","family":"Weinberg","sequence":"first","affiliation":[{"name":"Pulmonary & Critical Care, Cedars-Sinai Medical Center, Los Angeles, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William","family":"Chang","sequence":"additional","affiliation":[{"name":"Pulmonary & Critical Care, Cedars-Sinai Medical Center, Los Angeles, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Grace","family":"Ih","sequence":"additional","affiliation":[{"name":"Cedars-Sinai Medical Center, Los Angeles, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alan","family":"Waxman","sequence":"additional","affiliation":[{"name":"Radiology, Cedars-Sinai Medical Center, Los Angeles, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Victor F.","family":"Tapson","sequence":"additional","affiliation":[{"name":"Pulmonary & Critical Care, Cedars-Sinai Medical Center, Los Angeles, CA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2018,10,22]]},"reference":[{"key":"bibr1-0885066618807859","doi-asserted-by":"publisher","DOI":"10.1001\/archinte.163.14.1711"},{"key":"bibr2-0885066618807859","doi-asserted-by":"publisher","DOI":"10.1016\/S0735-1097(97)00319-7"},{"key":"bibr3-0885066618807859","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.592592"},{"key":"bibr4-0885066618807859","doi-asserted-by":"publisher","DOI":"10.1378\/chest.122.4.1440"},{"key":"bibr5-0885066618807859","doi-asserted-by":"publisher","DOI":"10.1097\/MCP.0b013e32821acdbe"},{"issue":"1","key":"bibr6-0885066618807859","first-page":"11","volume":"12","author":"Passarino G","year":"1982","journal-title":"G Ital Cardiol"},{"issue":"3","key":"bibr7-0885066618807859","first-page":"356","volume":"24","author":"Lau G","year":"1995","journal-title":"Ann Acad Med 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