Abnormal Motion Patterns of the Interventricular Septum

Dwivedi, Aeshita; Axel, Leon

doi:10.1016/j.jcmg.2017.06.014

Cited by 12 publications

(10 citation statements)

References 2 publications

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“…As movement of the cardiac base is more obvious than that of apex, displacement of the center of mass of the AS is in three directions and are greater than that of the VS. The VS is a concave structure attached to the left ventricle, and its movement is adduction towards the left ventricle in cardiac contraction, and abduction away from the left ventricle in cardiac diastole (19). Movement of the AS is more complex and involves movement towards the right atrium in the end-stage of cardiac contraction and the early-stage of diastole, then towards the left atrium, with mild motion in mid-diastole, and small displacement toward to left atrium movement followed by movement towards the right atrium instantly after the P wave (20).…”

Section: Discussionmentioning

confidence: 99%

The margin of internal risk volume on atrial septal and ventricular septal based on electrocardiograph gating 4DCT

Li¹,

Tong²,

Gong³

et al. 2021

Ann Transl Med

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Background: The aim of this study was to quantify the margin of internal risk volume (IRV) on the atrial septum (AS) and ventricular septum (VS) based on electrocardiograph gating (ECG-gating) 4DCT.Methods: Twenty patients were enrolled and received an ECG-gating 4DCT scan performed in breathhold, and CT images were reconstructed at 5% intervals of the cardiac cycle for a total of 20 phases (0-95%).The contouring of the AS and VS were delineated in each phase, and the displacements and margin of the AS and VS were calculated. We fused the total of the AS and VS (0-95% phase), which were recorded as AS 20 and VS 20 . The margins were applied to the AS and VS in every phase and revised according to the cover rate of AS 20 and VS 20 .Results: (I) The margins of the AS and VS according to displacements in the left-right, cranio-caudal, and antero-posterior direction were 3 mm, 3 mm, and 3 mm; and 3 mm, 3 mm, and 2 mm, respectively. (II) The volume of AS 20 was (11.80±3.72) cm 3 , which was 2.9 times larger than the maximum volume of the AS. The volume of VS 20 was (60.45±12.92) cm 3 , which was 1.6 times larger than the maximum volume of the VS. (III)The emendatory margins of the AS and VS in the left-right, cranio-caudal, and antero-posterior direction were 7 mm, 10 mm, and 7 mm; and 5 mm, 3 mm, and 4 mm, respectively. The emendatory margins were added to the AS and VS, and the coverage rates were (95.88±3.29)% and (95.24±2.54)%, respectively. Conclusions:The margin of IRV on the AS and VS could cover the movement of AS and VS induced by heartbeat in the left-right, cranio-caudal, and antero-posterior direction respectively during thoracic radiotherapy.

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Section: Discussionmentioning

confidence: 99%

The margin of internal risk volume on atrial septal and ventricular septal based on electrocardiograph gating 4DCT

Li¹,

Tong²,

Gong³

et al. 2021

Ann Transl Med

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“…The interventricular septum is the cardiac tissue wall separating the left and right ventricles. 6 V3 and V4 view activity from the anterior wall of the left ventricle; V5 and V6 measure activity from the lower anterolateral wall of the left ventricle (see Chest leads). 7 The extremity leads are I, II, III, aVR, aVL, and aVF.…”

Section: Ecg Lead Viewsmentioning

confidence: 99%

Basics of the 12-lead ECG

Bruce,

Moore,

Mello

et al. 2023

Nursing

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“…Progressive tricuspid regurgitation and increased RA pressures result in a dilated non-collapsing IVC. 31 As a consequence of pressure overload, since the interventricular septum is a shared structure, the left ventricle may show signs of under filling as the heart contracts in a confined space. This reduced LV filling may result in the LA and LV chambers appearing smaller.…”

Section: Acute Right Heart Strainmentioning

confidence: 99%

Adapting the role of handheld echocardiography during the COVID-19 pandemic: A practical guide

Naderi

Robinson²,

Swaans

et al. 2021

Perfusion

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The COVID-19 pandemic has altered our approach to inpatient echocardiography delivery. There is now a greater focus to address key clinical questions likely to make an immediate impact in management, particularly during the period of widespread infection. Handheld echocardiography (HHE) can be used as a first-line assessment tool, limiting scanning time and exposure to high viral load. This article describes a potential role for HHE during a pandemic. We propose a protocol with a reporting template for a focused core dataset necessary in delivering an acute echocardiography service in the setting of a highly contagious disease, minimising risk to the operator. We cover the scenarios typically encountered in the acute cardiology setting and how an expert trained echocardiography team can identify such pathologies using a limited imaging format and include cardiac presentations encountered in those patients acutely unwell with COVID-19.

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Abnormal Motion Patterns of the Interventricular Septum

Cited by 12 publications

References 2 publications

The margin of internal risk volume on atrial septal and ventricular septal based on electrocardiograph gating 4DCT

The margin of internal risk volume on atrial septal and ventricular septal based on electrocardiograph gating 4DCT

Basics of the 12-lead ECG

Adapting the role of handheld echocardiography during the COVID-19 pandemic: A practical guide

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