References

  1. Remy-Jardin M, Remy J. Spiral CT angiography of the pulmonary circulation. Radiology. 1999; 212:615-636. PubMed | Google Scholar

  2. Tatco VR, Piedad HH. The validity of hyperdense lumen sign in the non-contrast chest CT scans in the detection of pulmonary thromboembolism. Int J Cardiovasc Imaging. 2011; 27:433-40. PubMed | Google Scholar

  3. Kanne P, Thoongsuwan N, Stern EJ. Detection of central pulmonary embolism on computed tomography densitometry images before computed tomography pulmonary angiography. J Comput Assist Tomogr. 2003; 27(6):907-910. Google Scholar

  4. Cobelli R, Zompatori M, De Luca G, Chiari G et al. Clinical usefulness of computed tomography study without contrast injection in the evaluation of acute pulmonary embolism. J Comput Assist Tomogr. 2005; 29(1):6-12. PubMed | Google Scholar

  5. Sun S, Semionov A, Xie X, Kosiuk J et al. Detection of central pulmonary embolism on non contrast computed tomography: a case control study. Int J Cardiovasc Imaging. 2014; 30:639-46. PubMed | Google Scholar

  6. Thom C, Lewis N. Never say never: Identification of acute pulmonary embolism on non-contrast computed tomography imaging. Am J Emerg Med. 2017 Oct; 35(10):1584.e1-1584. PubMed | Google Scholar

  7. Gotway MB, Webb WR. Acute pulmonary embolism: visualization of high attenuation clot in the pulmonary artery on non-contrast helical chest CT. Emerg Radiol. 2000; 7:117-119. Google Scholar

  8. Kanne JP, Gotway MB, Thongsuwan N et al. Six cases of acute central pulmonary embolism revealed on unenhanced multidetector CT of the chest. AJR Am J Roentgenol. 2003; 180:1661-1664. PubMed | Google Scholar