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

Autor: Absalom D. Hepner, Paul Lizotte, Norah Milne, Mohammad Reza Movahed
Rok vydání: 2005
Předmět:
Adult
Male
medicine.medical_specialty
gated single photon emission computed tomography
septal flattening
Heart Ventricles
Ventricular Dysfunction
Right
Gated SPECT
Statistics as Topic
Single-photon emission computed tomography
Sensitivity and Specificity
Organophosphorus Compounds
right ventricular overload
Internal medicine
pulmonary hypertension
Heart Septum
Humans
Medicine
Radiology
Nuclear Medicine and imaging
Interventricular septum
Aged
Retrospective Studies
Ultrasonography
Aged
80 and over
Tomography
Emission-Computed
Single-Photon
medicine.diagnostic_test
business.industry
D-shaped left ventricle
Reproducibility of Results
Gated Blood-Pool Imaging
Organotechnetium Compounds
Middle Aged
medicine.disease
Pulmonary hypertension
Pulmonary embolism
Obstructive sleep apnea
medicine.anatomical_structure
Ventricle
Tracer uptake
Cardiology
Female
Radiopharmaceuticals
Cardiology and Cardiovascular Medicine
business
myocardial perfusion
Zdroj: Movahed, MD, PhD, FACC, FACP, FSCAI, FCCP, Mohammad-Reza R; Hepner, A; Lizotte, P; & Milne, N. (2005). 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. Journal of Nuclear Cardiology, 12(4), 428-434. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/0w68j154
ISSN: 1071-3581
Popis: Background. Flattening of the interventricular septum (D-shaped left ventricle) detected during echocardiographic examination is correlated with significant right ventricular (RV) overload. There are no reports of this finding with cardiac gated single photon emission computed tomography (SPECT) imaging. We report an observational study correlating this finding with the presence of RV overload. Methods and Results. Retrospectively, we compared 8 cases with flattening of the interventricular septum on cardiac gated SPECT imaging for which echocardiographic correlations and clinical data were available regarding the presence of RV overload. All patients but I had pulmonary hypertension ranging from 42 to 52 mm Hg measured by echocardiographic Doppler studies. All patients but 1 had reasons for RV overload (chronic obstructive pulmonary disease in 3, history of atrial septal defect in 3, pulmonary embolism in 1, and obstructive sleep apnea in 1). Septal flattening present on gated SPECT images was seen in 50% of the cases by echocardiography. Other signs of RV overload (RV enlargement, RV hypertrophy) were observed by echocardiography in 5 patients and by the gated SPECT in 7 patients. Conclusion. The presence of interventricular septal flattening on gated SPECT studies correlates with RV overload and should be routinely assessed during interpretation of gated SPECT studies.
Databáze: OpenAIRE
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