D sign (left ventricle)
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Feger J, D sign (left ventricle). Reference article, Radiopaedia.org (Accessed on 29 Mar 2025) https://doi.org/10.53347/rID-87724
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rID:
87724
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Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
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At the time the article was last revised Rohit Sharma had no financial relationships to ineligible companies to disclose.
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4 times, by
4 contributors -
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Synonyms:
- D-sign
- D-shaped left ventricle
- D sign in right heart failure
A D-shaped left ventricle or flattening of the interventricular septum with a D-shaped left ventricular configuration is a feature described with significant right ventricular (RV) overload or right heart strain, such as that occurring with complications of a sizeable pulmonary embolus. It was initially described in SPECT and scintigraphic studies although similar appearances have also been described in echocardiography 1 and CT in similar situations.
References
- 1. Ma, Christopher M., Cohen, Joshua, Tolpin, Daniel. Right Ventricular Dysfunction and the “D”-shaped Left Ventricle. (2020) Anesthesiology. 132 (1): 155. doi:10.1097/ALN.0000000000002961
- 2. Movahed MR, Hepner A, Lizotte P, Milne N. Flattening of the interventricular septum (D-shaped left ventricle) in addition to high right ventricular tracer uptake and increased right ventricular volume found on gated SPECT studies strongly correlates with right ventricular overload. (2005) Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 12 (4): 428-34. doi:10.1016/j.nuclcard.2005.04.004 - Pubmed
- 3. Wadhwa S et.al. Functional assessment of the right ventricle with gated myocardial perfusion SPECT. (2002) Clinical nuclear medicine. doi:10.1097/00003072-200212000-00005 - Pubmed
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