Updated: May 15, 2026

Reduction in Left Ventricular Wall Stress and Improvement in Function in Failing Hearts using Algisyl-LVR
Published on: April 8, 2013
Bjørnar Grenne1,2, Andreas Østvik1,2,3, Håvard Dalen1,2,4
1Department of Circulation and Medical Imaging, NTNU - Norwegian University of Science and Technology.
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This review examines how artificial intelligence is changing the way doctors measure heart muscle function using echocardiography. It highlights improvements in speed and consistency, while noting that more research is needed to prove these tools improve patient health outcomes.
Area of Science:
Background:
The precise quantification of heart muscle deformation remains a challenge in routine cardiac imaging. Standard manual techniques often suffer from significant variability between different operators. No prior work had resolved the persistent inconsistencies inherent in traditional echocardiographic assessment. That uncertainty drove the development of automated computational solutions to assist clinicians. Prior research has shown that machine learning models might offer more reliable measurements than human interpretation. This gap motivated a comprehensive look at how these technologies perform in real-world settings. Researchers have sought to understand if these tools can truly streamline busy clinical workflows. This review synthesizes recent progress to clarify the current state of these digital health innovations.
Purpose Of The Study:
The aim of this review is to evaluate recent advances in artificial intelligence for left ventricular strain echocardiography. The researchers seek to assess current evidence regarding measurement performance and workflow integration. This study addresses the need to understand emerging computational approaches in cardiac imaging. The authors investigate how these tools perform in disease-specific applications like cardio-oncology. They also examine the barriers that currently hinder widespread clinical adoption. The motivation stems from the rapid evolution of these technologies over the past eighteen months. This work clarifies the potential for these systems to improve diagnostic consistency. Finally, the review outlines necessary steps for future validation and safe implementation in routine practice.
The researchers propose that these tools enhance measurement reproducibility and decrease operator dependence. Compared to manual techniques, automated global longitudinal strain assessment demonstrates higher feasibility and more consistent results across different clinical settings.
These systems utilize advanced machine learning architectures to provide real-time acquisition support. Unlike older retrospective post-processing methods, these newer approaches integrate directly into the imaging workflow to standardize image collection and reduce total analysis time.
The authors note that clinician oversight is a requirement for safe implementation. This necessity arises because current model agreement with conventional methods remains imperfect, and decision thresholds for clinical action are not yet fully established.
Main Methods:
The review approach focused on literature published during the preceding eighteen months. Researchers systematically evaluated evidence regarding measurement performance and clinical workflow integration. The team assessed emerging computational strategies alongside established disease-specific applications. They examined barriers preventing widespread adoption in standard medical environments. The investigation synthesized data from various studies to compare automated results against traditional manual techniques. This methodology prioritized high-quality evidence regarding feasibility and reproducibility. The authors scrutinized how these digital tools influence image acquisition standards. Finally, the analysis identified current priorities for future validation and reporting requirements.
Main Results:
Key findings from the literature demonstrate that automated global longitudinal strain measurement has achieved high feasibility. Recent reports indicate that these systems provide improved reproducibility compared with conventional analysis methods. The data show a significant reduction in operator dependence when using these computational tools. Evidence confirms that modern applications have moved beyond retrospective processing toward real-time acquisition support. Studies highlight shorter analysis times and more standardized image collection procedures. The literature suggests a shift toward multitask models that integrate strain with broader cardiac interpretation. However, the findings reveal that agreement with conventional methods remains imperfect across different models. The authors report that prospective evidence for improved patient outcomes is currently limited.
Conclusions:
The authors propose that automated strain analysis is transitioning toward comprehensive clinical support systems. Synthesis and implications suggest that future efforts must prioritize rigorous external validation across diverse patient populations. Transparent reporting of both successful and failed model outputs remains a requirement for building trust. The researchers emphasize that prospective trials are necessary to confirm actual improvements in patient care. Clinician oversight is presented as a requirement for the safe deployment of these automated systems. Current evidence indicates that while reproducibility has improved, agreement with standard methods is not yet perfect. The review highlights that decision thresholds for these new models require further standardization. Ultimately, the field is moving toward integrated models that combine strain data with broader cardiac interpretations.
These models function by integrating strain data with broader echocardiographic interpretations. This multitasking role allows the software to move beyond simple single-task automation toward complex phenotyping-oriented analysis for more comprehensive cardiac evaluation.
The researchers observe that these applications are most frequently studied in acute ischaemic heart disease and cardio-oncology. In these fields, the technology shows promise for improving risk stratification, patient surveillance, and clinical triage processes.
The authors state that prospective evidence for improved clinical outcomes is still limited. While current studies demonstrate technical feasibility, they highlight that future research must focus on validating the actual utility and workflow impact in routine practice.