MDCT pulmonary angiography is replacing the ventilation-perfusion lung scan to diagnose suspected pulmonary embolism in hospitalized patients, say researchers from Rhode Island Hospital in Providence.

In December 2025, 4DMedical announced a significant expansion of its distribution agreement with Koninklijke Philips for CT:VQTM, the company’s FDA-cleared, non-contrast CT ventilation and perfusion ...

NO SINGLE NONINVASIVE TEST for pulmonary embolism is both sensitive and specific. Some tests are good for “ruling in” pulmonary embolism (e.g., helical CT) and some tests are good for “ruling out” ...

Backround A 40-year-old woman presented with dyspnea in the fifth month of pregnancy followed by a sudden onset of pleuritic chest pain 2 weeks postpartum. She was diagnosed as having pulmonary ...

A previously well 71-year-old woman with a history of cigarette smoking presented to the emergency department with a 6-hour history of dyspnea and pleuritic right-sided chest pain. Her oxygen ...

To detect in-stent restenosis among patients with coronary stents, a new study shows the potential for improved diagnostic accuracy by adding computed tomography perfusion imaging to coronary CT ...