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SPECT/CT and pulmonary embolism.
Eur J Nucl Med Mol Imaging 2014; 41 Suppl 1:S81-90EJ

Abstract

Acute pulmonary embolism (PE) is diagnosed either by ventilation/perfusion (V/P) scintigraphy or pulmonary CT angiography (CTPA). In recent years both techniques have improved. Many nuclear medicine centres have adopted the single photon emission CT (SPECT) technique as opposed to the planar technique for diagnosing PE. SPECT has been shown to have fewer indeterminate results and a higher diagnostic value. The latest improvement is the combination of a low-dose CT scan with a V/P SPECT scan in a hybrid tomograph. In a study comparing CTPA, planar scintigraphy and SPECT alone, SPECT/CT had the best diagnostic accuracy for PE. In addition, recent developments in the CTPA technique have made it possible to image the pulmonary arteries of the lungs in one breath-hold. This development is based on the change from a single-detector to multidetector CT technology with an increase in volume coverage per rotation and faster rotation. Furthermore, the dual energy CT technique is a promising modality that can provide functional imaging in combination with anatomical information. Newer high-end CT scanners and SPECT systems are able to visualize smaller subsegmental emboli. However, consensus is lacking regarding the clinical impact and treatment. In the present review, SPECT and SPECT in combination with low-dose CT, CTPA and dual energy CT are discussed in the context of diagnosing PE.

Authors+Show Affiliations

Department of Clinical Physiology, Nuclear Medicine & PET, Rigshospitalet, Copenhagen University Hospital, 2100, Copenhagen, Denmark, jann.mortensen@regionh.dk.No affiliation info available

Pub Type(s)

Journal Article
Review

Language

eng

PubMed ID

24213621

Citation

Mortensen, Jann, and Henrik Gutte. "SPECT/CT and Pulmonary Embolism." European Journal of Nuclear Medicine and Molecular Imaging, vol. 41 Suppl 1, 2014, pp. S81-90.
Mortensen J, Gutte H. SPECT/CT and pulmonary embolism. Eur J Nucl Med Mol Imaging. 2014;41 Suppl 1:S81-90.
Mortensen, J., & Gutte, H. (2014). SPECT/CT and pulmonary embolism. European Journal of Nuclear Medicine and Molecular Imaging, 41 Suppl 1, pp. S81-90. doi:10.1007/s00259-013-2614-5.
Mortensen J, Gutte H. SPECT/CT and Pulmonary Embolism. Eur J Nucl Med Mol Imaging. 2014;41 Suppl 1:S81-90. PubMed PMID: 24213621.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - SPECT/CT and pulmonary embolism. AU - Mortensen,Jann, AU - Gutte,Henrik, Y1 - 2013/11/09/ PY - 2013/10/09/received PY - 2013/10/10/accepted PY - 2013/11/12/entrez PY - 2013/11/12/pubmed PY - 2015/1/31/medline SP - S81 EP - 90 JF - European journal of nuclear medicine and molecular imaging JO - Eur. J. Nucl. Med. Mol. Imaging VL - 41 Suppl 1 N2 - Acute pulmonary embolism (PE) is diagnosed either by ventilation/perfusion (V/P) scintigraphy or pulmonary CT angiography (CTPA). In recent years both techniques have improved. Many nuclear medicine centres have adopted the single photon emission CT (SPECT) technique as opposed to the planar technique for diagnosing PE. SPECT has been shown to have fewer indeterminate results and a higher diagnostic value. The latest improvement is the combination of a low-dose CT scan with a V/P SPECT scan in a hybrid tomograph. In a study comparing CTPA, planar scintigraphy and SPECT alone, SPECT/CT had the best diagnostic accuracy for PE. In addition, recent developments in the CTPA technique have made it possible to image the pulmonary arteries of the lungs in one breath-hold. This development is based on the change from a single-detector to multidetector CT technology with an increase in volume coverage per rotation and faster rotation. Furthermore, the dual energy CT technique is a promising modality that can provide functional imaging in combination with anatomical information. Newer high-end CT scanners and SPECT systems are able to visualize smaller subsegmental emboli. However, consensus is lacking regarding the clinical impact and treatment. In the present review, SPECT and SPECT in combination with low-dose CT, CTPA and dual energy CT are discussed in the context of diagnosing PE. SN - 1619-7089 UR - https://www.unboundmedicine.com/medline/citation/24213621/SPECT/CT_and_pulmonary_embolism_ L2 - https://dx.doi.org/10.1007/s00259-013-2614-5 DB - PRIME DP - Unbound Medicine ER -