Assessment of two-component ventricular septum: functional differences in systolic deformation and rotation assessed by speckle tracking imaging

Echocardiography
Yasunobu HayabuchiShoji Kagami

Abstract

The purpose of this study was to elucidate functional differences in the right and left components of the ventricular septum (Rt and Lt, respectively). Strain, strain rate, rotation, and rotation rate profile curves of Rt and Lt were obtained using speckle tracking echocardiography in 38 normal children and adolescents. The echogenic bright line serving as the boundary separating Rt from Lt was consistently visible in the middle of the ventricular septum. There was no significant difference in peak strain or peak strain rate during systole between Rt and Lt. However, the time interval from the onset of QRS-wave to peak strain and peak strain rate were significantly lower in Lt than in Rt in terms of radial and circumferential deformation (P < 0.005, all), whereas there was no significant difference in longitudinal deformation in the time to peak strain or peak strain rate between Rt and Lt. Lt showed counterclockwise rotation, whereas Rt showed clockwise rotation (10.4 ± 2.9° vs. -10.2 ± 2.6°, P < 0.0001). Time to peak rotation was significantly lower in Lt than in Rt (201.7 ± 32.7 msec vs. 370.4 ± 31.2 msec, P < 0.0001). Morphologically and functionally the ventricular septum is a two-component structure. Evaluation of deforma...Continue Reading

References

Sep 1, 1986·American Heart Journal·S Kaul
Jul 1, 1984·Investigative Radiology·P P LunkenheimerF Köhler
Jan 25, 2002·Seminars in Thoracic and Cardiovascular Surgery·F Torrent-GuaspM Gharib
Nov 25, 2004·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Tomohiko ToyodaKiyoshi Yoshida
Jun 21, 2005·Journal of the American College of Cardiology·Yuichi NotomiJames D Thomas
Aug 12, 2005·Annals of the New York Academy of Sciences·Patrick HelmRaimond L Winslow
Sep 24, 2005·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Robert H AndersonPaul P Lunkenheimer
Mar 28, 2006·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Nikola HristovGeorg Trummer
Mar 28, 2006·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Saleh SalehGerald D Buckberg
Mar 29, 2006·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Gerald D Buckberg, UNKNOWN RESTORE Group
Mar 29, 2006·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·Paul P LunkenheimerRobert H Anderson
Nov 14, 2006·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Per LindqvistAnders Waldenström
May 9, 2007·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Partho P SenguptaMarek Belohlavek
May 20, 2008·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Sung-Ji ParkJae K Oh
Sep 23, 2008·The Journal of Thoracic and Cardiovascular Surgery·Gerald BuckbergCecil Coghlan
May 16, 2009·JACC. Cardiovascular Imaging·Iris K RüsselAlbert C van Rossum
Nov 17, 2009·Journal of Cardiovascular Magnetic Resonance : Official Journal of the Society for Cardiovascular Magnetic Resonance·David E SosnovikVan J Wedeen
Mar 12, 2011·Circulation. Cardiovascular Imaging·Ola GjesdalOtto A Smiseth
Aug 9, 2011·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Yasunobu HayabuchiShoji Kagami
Apr 5, 2013·Echocardiography·Jonathan ForseyLuc Mertens

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.