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Bioengineering
Special Issues
Visual Image Technologies for Respiratory and Circulatory Management
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Visual Image Technologies for Respiratory and Circulatory Management

A special issue of Bioengineering (ISSN 2306-5354). This special issue belongs to the section "Biosignal Processing".

Deadline for manuscript submissions: 15 August 2024 | Viewed by 1772

Special Issue Editors

Dr. Zhanqi Zhao

E-Mail Website
Guest Editor
Institute of Technical Medicine, Hochschule Furtwangen, Furtwangen, Germany
Interests: lung protective ventilation; lung mechanics; pulmonary function testing; electrical impedance tomography
Dr. Lin Yang

E-Mail Website
Guest Editor
Department of Aerospace Medicine, Fourth Military Medical University, Xi'an, China
Interests: imaging reconstruction; imaging processing
Dr. Meng Dai

E-Mail Website
Guest Editor
Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
Interests: imaging reconstruction; imaging processing
Dr. Tingting Zhang

E-Mail Website
Guest Editor
Department of Biomedical Engineering, College of Medicine, Kyung Hee University, Seoul, Korea
Interests: inverse problem; electrical impedance tomography; cardiopulmonary monitoring; medical imaging; signal processing

Special Issue Information

Dear Colleagues,

Respiratory and circulatory systems play important roles in supporting our body’s daily functioning. In clinical practice, various measurements have been proposed to understand the status of the respiratory and circulatory systems. Out of these, direct visualization of the systems provides insights into the ventilation, circulation, and their interaction, which then guide the clinical management of the patients.

In recent years, exciting developments and updates have emerged in both research as well as practical fields. Bedside imaging tools are needed to facilitate the timely assessment of disease development and treatment effects. Recently, bedside tools such as electrical impedance tomography and ultrasound have received increasing interest in clinical practice. Regional lung perfusion monitoring and regional ventilation assessment, cardiac output change, hypertension in the circulatory system and many other applications ensure further investigation into image technologies.

This Special Issue aims to provide a platform for sharing the recent progress in visual image technologies for cardiac and pulmonary diseases management. We welcome case reports, reviews, expert consensuses, original research as well as other article types. We expect submissions relating, but not limited to, the following themes:

  • Advance of bedside visual image technologies for respiratory and circulatory management in all clinical settings;
  • Novel visual image technologies for disease diagnosis, routine check-up of disease progress, personalized therapy development and facilitation of decision making.

Dr. Zhanqi Zhao
Dr. Lin Yang
Dr. Meng Dai
Dr. Tingting Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Bioengineering is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • respiratory system
  • circulatory system
  • visual image technologies
  • disease management

Published Papers (2 papers)

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Research

19 pages, 13004 KiB  
Article
Design Optimization and Tradeoff Analysis of an Actuated Continuum Probe for Pulmonary Nodule Localization and Resection
by Madison D. McCullough, Marie Muller, Thomas M. Egan and Gregory D. Buckner
Bioengineering 2024, 11(5), 417; https://doi.org/10.3390/bioengineering11050417 - 24 Apr 2024
Viewed by 364
Abstract
Pulmonary nodules are abnormal tissue masses in the lungs, typically less than 3.0 cm in diameter, commonly detected during imaging of the chest and lungs. While most pulmonary nodules are not cancerous, surgical resection may be required if growth is detected between scans. [...] Read more.
Pulmonary nodules are abnormal tissue masses in the lungs, typically less than 3.0 cm in diameter, commonly detected during imaging of the chest and lungs. While most pulmonary nodules are not cancerous, surgical resection may be required if growth is detected between scans. This resection is typically performed without the benefit of intraoperative imaging, making it difficult for surgeons to confidently provide appropriate margins. To enhance the efficacy of wedge resection, researchers have developed a modified ultrasound imaging approach that utilizes both multiple scattering (MS) and single scattering (SS) to enhance the accuracy of margin delineation. Clinical deployment of this novel ultrasound technology requires a highly maneuverable ultrasound probe, ideally one that could be deployed and actuated with minimal invasiveness. This study details the design optimization and tradeoff analysis of an actuated continuum probe for pulmonary nodule localization and resection. This device, deployed through intercostal ports, would enable the intraoperative imaging and precise mapping of nodules for improved margin delineation and patient outcomes. To achieve this objective, multiple objective genetic algorithms (MOGAs) and a design of experiments (DOE) study are used to explore the design space and quantify key dimensional relationships and their effects on probe actuation. Full article
(This article belongs to the Special Issue Visual Image Technologies for Respiratory and Circulatory Management)
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10 pages, 546 KiB  
Article
Individualized PEEP without Recruitment Maneuvers Improves Intraoperative Oxygenation: A Randomized Controlled Study
by Lili Pan, Li Yang, Lingling Gao, Zhanqi Zhao and Jun Zhang
Bioengineering 2023, 10(10), 1172; https://doi.org/10.3390/bioengineering10101172 - 09 Oct 2023
Viewed by 931
Abstract
Individualized positive end-expiratory pressure (PEEP) combined with recruitment maneuvers improves intraoperative oxygenation in individuals undergoing robot-assisted prostatectomy. However, whether electrical impedance tomography (EIT)-guided individualized PEEP without recruitment maneuvers can also improve intraoperative oxygenation is unknown. To test this, fifty-six male patients undergoing elective [...] Read more.
Individualized positive end-expiratory pressure (PEEP) combined with recruitment maneuvers improves intraoperative oxygenation in individuals undergoing robot-assisted prostatectomy. However, whether electrical impedance tomography (EIT)-guided individualized PEEP without recruitment maneuvers can also improve intraoperative oxygenation is unknown. To test this, fifty-six male patients undergoing elective robot-assisted laparoscopic prostatectomy were randomly assigned to either individualized PEEP (Group PEEPIND, n = 28) or a control with a fixed PEEP of 5 cm H2O (Group PEEP5, n = 28). Individualized PEEP was guided by EIT after placing the patients in the Trendelenburg position and performing intraperitoneal insufflation. Patients in Group PEEPIND maintained individualized PEEP without intermittent recruitment maneuvers, and those in Group PEEP5 maintained a PEEP of 5 cm H2O intraoperatively. Both groups were extubated in a semi-sitting position once the extubation criteria were met. The primary outcome was arterial oxygen partial pressure (PaO2)/inspiratory oxygen fraction (FiO2) prior to extubation. Other outcomes included intraoperative driving pressure, plateau pressure and dynamic, respiratory system compliance, and the incidence of postoperative hypoxemia in the post-operative care unit (PACU). Our results showed that the intraoperative median for PEEPIND was 16 cm H2O (ranging from 12 to 18 cm H2O). EIT-guided PEEPIND was associated with higher PaO2/FiO2 before extubation compared to PEEP5 (71.6 ± 10.7 vs. 56.8 ± 14.1 kPa, p = 0.003). Improved oxygenation extended into the PACU with a lower incidence of postoperative hypoxemia (3.8% vs. 26.9%, p = 0.021). Additionally, PEEPIND was associated with lower driving pressures (12.0 ± 3.0 vs. 15.0 ± 4.4 cm H2O, p = 0.044) and better compliance (44.5 ± 12.8 vs. 33.6 ± 9.1 mL/cm H2O, p = 0.017). Our data indicated that individualized PEEP guided by EIT without intraoperative recruitment maneuvers also improved perioperative oxygenation in patients undergoing robot-assisted laparoscopic radical prostatectomy, which could benefit patients with the risk of intraoperative hemodynamic instability caused by recruitment maneuvers. Trial registration: China Clinical Trial Registration Center Identifier: ChiCTR2100053839. This study was registered on 1 December 2021. The first patient was recruited on 15 December 2021. Full article
(This article belongs to the Special Issue Visual Image Technologies for Respiratory and Circulatory Management)
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