1
|
Leartprapun N, Adie SG. Recent advances in optical elastography and emerging opportunities in the basic sciences and translational medicine [Invited]. BIOMEDICAL OPTICS EXPRESS 2023; 14:208-248. [PMID: 36698669 PMCID: PMC9842001 DOI: 10.1364/boe.468932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 05/28/2023]
Abstract
Optical elastography offers a rich body of imaging capabilities that can serve as a bridge between organ-level medical elastography and single-molecule biophysics. We review the methodologies and recent developments in optical coherence elastography, Brillouin microscopy, optical microrheology, and photoacoustic elastography. With an outlook toward maximizing the basic science and translational clinical impact of optical elastography technologies, we discuss potential ways that these techniques can integrate not only with each other, but also with supporting technologies and capabilities in other biomedical fields. By embracing cross-modality and cross-disciplinary interactions with these parallel fields, optical elastography can greatly increase its potential to drive new discoveries in the biomedical sciences as well as the development of novel biomechanics-based clinical diagnostics and therapeutics.
Collapse
Affiliation(s)
- Nichaluk Leartprapun
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA
- Present affiliation: Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Steven G. Adie
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, USA
| |
Collapse
|
2
|
Pien N, Palladino S, Copes F, Candiani G, Dubruel P, Van Vlierberghe S, Mantovani D. Tubular bioartificial organs: From physiological requirements to fabrication processes and resulting properties. A critical review. Cells Tissues Organs 2021; 211:420-446. [PMID: 34433163 DOI: 10.1159/000519207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/25/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Nele Pien
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Québec, Canada
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Sara Palladino
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Québec, Canada
- GenT Lab, Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy
| | - Francesco Copes
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Québec, Canada
| | - Gabriele Candiani
- GenT Lab, Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Ghent, Belgium
| | - Diego Mantovani
- Laboratory for Biomaterials and Bioengineering, Canada Research Chair Tier I for the Innovation in Surgery, Department of Min-Met-Materials Engineering & Regenerative Medicine, CHU de Quebec Research Center, Laval University, Quebec City, Québec, Canada
| |
Collapse
|
3
|
Bu R, Balakrishnan S, Iftimia N, Price H, Zdanski C, Mitran S, Oldenburg AL. Sensing Inhalation Injury-Associated Changes in Airway Wall Compliance by Anatomic Optical Coherence Elastography. IEEE Trans Biomed Eng 2021; 68:2360-2367. [PMID: 33175676 PMCID: PMC8110609 DOI: 10.1109/tbme.2020.3037288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Quantitative methods for assessing the severity of inhalation (burn) injury are needed to aid in treatment decisions. We hypothesize that it is possible to assess the severity of injuries on the basis of differences in the compliance of the airway wall. Here, we demonstrate the use of a custom-built, endoscopic, anatomic optical coherence elastography (aOCE) system to measure airway wall compliance. The method was first validated using airway phantoms, then performed on ex vivo porcine tracheas under varying degrees of inhalation (steam) injury. A negative correlation between aOCE-derived compliance and severity of steam injuries is found, and spatially-resolved compliance maps reveal regional heterogeneity in airway properties.
Collapse
Affiliation(s)
- Ruofei Bu
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA
| | - Santosh Balakrishnan
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA
| | - Nicusor Iftimia
- Physical Sciences Inc., New England Business Center, Andover, MA 01810, USA
| | - Hillel Price
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599- 3255 USA
| | - Carlton Zdanski
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7070, USA
| | - Sorin Mitran
- Department of Mathematics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA
| | - Amy L. Oldenburg
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599- 3255 USA
- Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA
| |
Collapse
|
4
|
Miao Y, Jing JJ, Chen Z. Graph-based rotational nonuniformity correction for localized compliance measurement in the human nasopharynx. BIOMEDICAL OPTICS EXPRESS 2021; 12:2508-2518. [PMID: 33996244 PMCID: PMC8086476 DOI: 10.1364/boe.419997] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 03/08/2021] [Accepted: 03/11/2021] [Indexed: 05/11/2023]
Abstract
Recent advancements in the high-speed long-range optical coherence tomography (OCT) endoscopy allow characterization of tissue compliance in the upper airway, an indicator of collapsibility. However, the resolution and accuracy of localized tissue compliance measurement are currently limited by the lack of a reliable nonuniform rotational distortion (NURD) correction method. In this study, we developed a robust 2-step NURD correction algorithm that can be applied to the dynamic OCT images obtained during the compliance measurement. We demonstrated the utility of the NURD correction algorithm by characterizing the local compliance of nasopharynx from an awake human subject for the first time.
Collapse
Affiliation(s)
- Yusi Miao
- Beckman Laser Institute, University of California, Irvine, Irvine, CA 92612, USA
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
| | - Joseph J. Jing
- Beckman Laser Institute, University of California, Irvine, Irvine, CA 92612, USA
| | - Zhongping Chen
- Beckman Laser Institute, University of California, Irvine, Irvine, CA 92612, USA
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA 92697, USA
| |
Collapse
|
5
|
Balakrishnan S, Bu R, Waters CM, Brandon BM, Kimbell JS, Stepp WH, Shockley WW, Clark JM, Oldenburg AL. Utility of endoscopic anatomical optical coherence tomography in functional rhinoplasty. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-11. [PMID: 31912688 PMCID: PMC7008596 DOI: 10.1117/1.jbo.25.1.016001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 12/16/2019] [Indexed: 05/16/2023]
Abstract
Objective measurement of the nasal valve region is valuable for the assessment of functional rhinoplasty surgical outcomes. Anatomical optical coherence tomography (aOCT) is an imaging modality that may be used to obtain real-time, quantitative, and volumetric scans of the nasal airway. We aim to evaluate if volumetric aOCT imaging is useful for the examination of the nasal valve region before and after functional rhinoplasty procedures. aOCT scans of the nasal valves were performed on four cadaveric heads before and after spreader graft and butterfly graft procedures. The resulting aOCT images were compared against video endoscopy images, and the segmented volumes of the nasal airway obtained from aOCT scans were compared with computed tomography (CT) derived volumes acquired under the same conditions. The aOCT-derived volumes match the CT volumes closely, with a mean Dice similarity coefficient of 0.88 and a mean Hausdorff distance of 2.3 mm. Furthermore, the aOCT images were found to represent the shape of the nasal cavity accurately. Due to its ability to perform real-time, quantitative, and accurate evaluation of the nasal airway, aOCT imaging is a promising modality for the objective assessment of the nasal valves before and after functional rhinoplasty procedures.
Collapse
Affiliation(s)
- Santosh Balakrishnan
- University of North Carolina at Chapel Hill, Department of Biomedical Engineering, Chapel Hill, North Carolina, United States
| | - Ruofei Bu
- University of North Carolina at Chapel Hill, Department of Biomedical Engineering, Chapel Hill, North Carolina, United States
| | - Candace M. Waters
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - Bryan M. Brandon
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - Julia S. Kimbell
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - Wesley H. Stepp
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - William W. Shockley
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - J. Madison Clark
- University of North Carolina School of Medicine, Department of Otolaryngology/Head and Neck Surgery, Chapel Hill, North Carolina, United States
| | - Amy L. Oldenburg
- University of North Carolina at Chapel Hill, Department of Biomedical Engineering, Chapel Hill, North Carolina, United States
- University of North Carolina at Chapel Hill, Department of Physics and Astronomy, Chapel Hill, North Carolina, United States
- University of North Carolina at Chapel Hill, Biomedical Research Imaging Center, Chapel Hill, North Carolina, United States
- Address all correspondence to Amy L. Oldenburg, E-mail:
| |
Collapse
|
6
|
Automatic proximal airway volume segmentation using optical coherence tomography for assessment of inhalation injury. J Trauma Acute Care Surg 2019; 87:S132-S137. [PMID: 31246917 DOI: 10.1097/ta.0000000000002277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Acute respiratory distress syndrome (ARDS) is a severe form of acute lung injury with a mortality rate of up to 40%. Early management of ARDS has been difficult due to the lack of sensitive imaging tools and robust analysis software. We previously designed an optical coherence tomography (OCT) system to evaluate mucosa thickness (MT) after smoke inhalation, but the analysis relied on manual segmentation. The aim of this study is to assess in vivo proximal airway volume (PAV) after inhalation injury using automated OCT segmentation and correlate the PAV to lung function for rapid indication of ARDS. METHODS Anesthetized female Yorkshire pigs (n = 14) received smoke inhalation injury (SII) and 40% total body surface area thermal burns. Measurements of PaO2-to-FiO2 ratio (PFR), peak inspiratory pressure (PIP), dynamic compliance, airway resistance, and OCT bronchoscopy were performed at baseline, postinjury, 24 hours, 48 hours, 72 hours after injury. A tissue segmentation algorithm based on graph theory was used to reconstruct a three-dimensional (3D) model of lower respiratory tract and estimate PAV. Proximal airway volume was correlated with PFR, PIP, compliance, resistance, and MT measurement using a linear regression model. RESULTS Proximal airway volume decreased after the SII: the group mean of proximal airway volume at baseline, postinjury, 24 hours, 48 hours, 72 hours were 20.86 cm (±1.39 cm), 17.61 cm (±0.99 cm), 14.83 cm (±1.20 cm), 14.88 cm (±1.21 cm), and 13.11 cm (±1.59 cm), respectively. The decrease in the PAV was more prominent in the animals that developed ARDS after 24 hours after the injury. PAV was significantly correlated with PIP (r = 0.48, p < 0.001), compliance (r = 0.55, p < 0.001), resistance (r = 0.35, p < 0.01), MT (r = 0.60, p < 0.001), and PFR (r = 0.34, p < 0.01). CONCLUSION Optical coherence tomography is a useful tool to quantify changes in MT and PAV after SII and burns, which can be used as predictors of developing ARDS at an early stage. LEVEL OF EVIDENCE Prognostic, level III.
Collapse
|
7
|
Bu R, Balakrishnan S, Price H, Zdanski C, Mitran S, Oldenburg AL. Localized compliance measurement of the airway wall using anatomic optical coherence elastography. OPTICS EXPRESS 2019; 27:16751-16766. [PMID: 31252896 PMCID: PMC6825607 DOI: 10.1364/oe.27.016751] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We describe an elastographic method to circumferentially-resolve airway wall compliance using endoscopic, anatomic optical coherence tomography (aOCT) combined with an intraluminal pressure catheter. The method was first demonstrated on notched silicone phantoms of known elastic modulus under respiratory ventilation, where localized compliance measurements were validated against those predicted by finite element modeling. Then, ex vivo porcine tracheas were scanned, and the pattern of compliance was found to be consistent with histological identification of the locations of (stiff) cartilage and (soft) muscle. This quantitative method may aid in diagnosis and monitoring of collapsible airway wall tissues in obstructive respiratory disorders.
Collapse
Affiliation(s)
- Ruofei Bu
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216, USA
| | - Santosh Balakrishnan
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216, USA
| | - Hillel Price
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA
| | - Carlton Zdanski
- Department of Otolaryngology/Head and Neck Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA
| | - Sorin Mitran
- Department of Mathematics, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7070, USA
| | - Amy L. Oldenburg
- Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216, USA
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA
- Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7248, USA
| |
Collapse
|
8
|
Miao Y, Brenner M, Chen Z. Endoscopic Optical Coherence Tomography for Assessing Inhalation Airway Injury: A Technical Review. OTOLARYNGOLOGY (SUNNYVALE, CALIF.) 2019; 9:366. [PMID: 31497378 PMCID: PMC6731096 DOI: 10.4172/2161-119x.1000366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Diagnosis of inhalation injury has been clinically challenging. Currently, assessment of inhalation injury relies on subjective clinical exams and bronchoscopy, which provides little understanding of tissue conditions and results in limited prognostics. Endoscopic Optical coherence tomography (OCT) technology has been recently utilized in the airway for direct assessment of respiratory tract disorders and injuries. Endoscopic OCT is capable of capturing high-resolution images of tissue morphology 1-3 mm beneath the surface as well as the complex 3D anatomical shape. Previous studies indicate that changes in airway histopathology can be found in the OCT image almost immediately after inhalation of smoke and other toxic chemicals, which correlates well with histology and pulmonary function tests. This review summarizes the recent development of endoscopic OCT technology for airway imaging, current uses of OCT for inhalation injury, and possible future directions.
Collapse
Affiliation(s)
- Yusi Miao
- Beckman Laser Institute, University of California, Irvine, CA, USA
| | - Matthew Brenner
- Beckman Laser Institute, University of California, Irvine, CA, USA
| | - Zhongping Chen
- Beckman Laser Institute, University of California, Irvine, CA, USA
| |
Collapse
|
9
|
Price HB, Kimbell JS, Bu R, Oldenburg AL. Geometric Validation of Continuous, Finely Sampled 3-D Reconstructions From aOCT and CT in Upper Airway Models. IEEE TRANSACTIONS ON MEDICAL IMAGING 2019; 38:1005-1015. [PMID: 30334787 PMCID: PMC6476567 DOI: 10.1109/tmi.2018.2876625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Identification and treatment of obstructive airway disorders (OADs) are greatly aided by imaging of the geometry of the airway lumen. Anatomical optical coherence tomography (aOCT) is a promising high-speed and minimally invasive endoscopic imaging modality for providing micrometer-resolution scans of the upper airway. Resistance to airflow in OADs is directly caused by the reduction in luminal cross-sectional area (CSA). It is hypothesized that aOCT can produce airway CSA measurements as accurate as that from computed tomography (CT). Scans of machine hollowed cylindrical tubes were used to develop methods for segmentation and measurement of airway lumen in CT and aOCT. Simulated scans of virtual cones were used to validate 3-D resampling and reconstruction methods in aOCT. Then, measurements of two segments of a 3-D printed pediatric airway phantom from aOCT and CT independently were compared to ground truth CSA. In continuous unobstructed regions, the mean CSA difference for each phantom segment was 2.2 ± 3.5 and 1.5 ± 5.3 mm2 for aOCT, and -3.4 ± 4.3 and -1.9 ± 1.2 mm2 for CT. Because of the similar magnitude of these differences, these results support the hypotheses and underscore the potential for aOCT as a viable alternative to CT in airway imaging, while offering greater potential to capture respiratory dynamics.
Collapse
Affiliation(s)
- Hillel B. Price
- Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 USA ()
| | - Julia S. Kimbell
- Department of Otolaryngology/Head and Neck Surgery, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7070 USA; Department of Biomedical Engineering, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA ()
| | - Ruofei Bu
- Department of Biomedical Medical Engineering, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA ()
| | - Amy L. Oldenburg
- Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255 USA; Biomedical Research Imaging Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7513 USA; Department of Biomedical Medical Engineering, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3216 USA ()
| |
Collapse
|
10
|
Lizal F, Jedelsky J, Morgan K, Bauer K, Llop J, Cossio U, Kassinos S, Verbanck S, Ruiz-Cabello J, Santos A, Koch E, Schnabel C. Experimental methods for flow and aerosol measurements in human airways and their replicas. Eur J Pharm Sci 2018; 113:95-131. [DOI: 10.1016/j.ejps.2017.08.021] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Revised: 08/14/2017] [Accepted: 08/17/2017] [Indexed: 12/29/2022]
|