1
|
Melancon AD, Jacobsen M, Damasco J, Perez J, Bernardino M, Valentin ES, Court KA, Godin B, Layman R, Melancon MP. Correction for partial volume averaging in the quantification of radiopaque nanomaterial-embedded resorbable polymers. Biomed Phys Eng Express 2024; 10:055021. [PMID: 39094587 DOI: 10.1088/2057-1976/ad6a66] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 08/02/2024] [Indexed: 08/04/2024]
Abstract
Resorbable inferior vena cava (IVC) filters require embedded contrast for image-guided placement and integrity monitoring. We calculated correction factors to account for partial volume averaging of thin nanoparticle (NP)-embedded materials, accounting for object and slice thicknesses, background signal, and nanoparticle concentration. We used phantoms containing polycaprolactone disks embedded with bismuth (Bi) or ytterbium (Yb): 0.4- to 1.2-mm-thick disks of 20 mg ml-1NPs (thickness phantom), 0.4-mm-thick disks of 0-20 mg ml-1NPs in 2 mg ml-1iodine (concentration phantom), and 20 mg ml-1NPs in 0.4-mm-thick disks in 0-10 mg ml-1iodine (background phantom). Phantoms were scanned on a dual-source CT with 80, 90, 100, and 150 kVp with tin filtration and reconstructed at 1.0- to 1.5-mm slice thickness with a 0.1-mm interval. Following scanning, disks were processed for inductively coupled plasma optical emission spectrometry (ICP-OES) to determine NP concentration. Mean and maximum CT numbers (HU) of all disks were measured over a 0.5-cm2area for each kVp. HU was converted to concentration using previously measured calibrations. Concentration measurements were corrected for partial volume averaging by subtracting residual slice background and extrapolating disk thickness to both nominal and measured slice sensitivity profiles (SSP, mm). Slice thickness to agreement (STTA, mm) was calculated by replacing the CT-derived concentrations with ICP-OES measurements and solving for thickness. Slice thickness correction factors improved agreement with ICP-OES for all measured data. Yb corrections resulted in lower STTA than Bi corrections in the concentration phantom (1.01 versus 1.31 STTA/SSP, where 1.0 is perfect agreement), phantoms with varying thickness (1.30 versus 1.87 STTA/SSP), and similar ratio in phantoms with varying background iodine concentration (1.34 versus 1.35 STTA/SSP). All measured concentrations correlated strongly with ICP-OES and all corrections for partial volume averaging increased agreement with ICP-OES concentration, demonstrating potential for monitoring the integrity of thin IVC resorbable filters with CT.
Collapse
Affiliation(s)
- Adam D Melancon
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
| | - Megan Jacobsen
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Jossana Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Joy Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Marvin Bernardino
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Erin San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Karem A Court
- Department of Nanomedicine, Houston Methodist Research Hospital, Houston, TX, 77030, United States of America
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Hospital, Houston, TX, 77030, United States of America
| | - Rick Layman
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| | - Marites P Melancon
- The University of Texas MD Anderson Cancer Center UTHealth Houston Graduate School of Biomedical Sciences, Houston, TX, 77030, United States of America
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, United States of America
| |
Collapse
|
2
|
San Valentin EM, Damasco JA, Bernardino M, Court KA, Godin B, Canlas GM, Melancon A, Chintalapani G, Jacobsen MC, Norton W, Layman RR, Fowlkes N, Chen SR, Huang SY, Melancon MP. Image-Guided Deployment and Monitoring of a Novel Tungsten Nanoparticle-Infused Radiopaque Absorbable Inferior Vena Cava Filter in a Swine Model. J Vasc Interv Radiol 2024; 35:113-121.e3. [PMID: 37696432 PMCID: PMC10872373 DOI: 10.1016/j.jvir.2023.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 08/30/2023] [Accepted: 09/03/2023] [Indexed: 09/13/2023] Open
Abstract
PURPOSE To improve radiopacity of radiolucent absorbable poly-p-dioxanone (PPDO) inferior vena cava filters (IVCFs) and demostrate their effectiveness in clot-trapping ability. MATERIALS AND METHODS Tungsten nanoparticles (WNPs) were incorporated along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of WNPs. The physicochemical and in vitro and in vivo imaging properties of PPDO IVCFs with WNPs with single-polymer PHB (W-P) were compared with those of WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB). RESULTS In vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the inherent physicomechanical properties of the PPDO sutures. W-P- and W-PB-coated IVCFs were deployed successfully into the inferior vena cava of pig models with monitoring by fluoroscopy. At the time of deployment, W-PB-coated IVCFs showed a 2-fold increase in radiopacity compared to W-P-coated IVCFs. Longitudinal monitoring of in vivo IVCFs over a 12-week period showed a drastic decrease in radiopacity at Week 3 for both filters. CONCLUSIONS The results highlight the utility of nanoparticles (NPs) and polymers for enhancing radiopacity of medical devices. Different methods of incorporating NPs and polymers can still be explored to improve the effectiveness, safety, and quality of absorbable IVCFs.
Collapse
Affiliation(s)
- Erin Marie San Valentin
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Jossana A Damasco
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Marvin Bernardino
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Karem A Court
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas
| | - Biana Godin
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas
| | | | - Adam Melancon
- Department of Radiation Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | | | - Megan C Jacobsen
- Department of Imaging Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William Norton
- Department of Veterinary Medicine and Surgery, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Rick R Layman
- Department of Imaging Physics, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Natalie Fowlkes
- Department of Veterinary Medicine and Surgery, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Stephen R Chen
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Steven Y Huang
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Marites P Melancon
- Department of Interventional Radiology, the University of Texas MD Anderson Cancer Center, Houston, Texas.
| |
Collapse
|
3
|
San Valentin EM, Damasco JA, Bernardino M, Court KA, Godin B, Canlas GM, Melancon A, Chintalapani G, Jacobsen MC, Norton W, Layman RR, Fowlkes N, Chen SR, Huang SY, Melancon MP. Image-guided deployment and monitoring of a novel tungsten nanoparticleâ€"infused radiopaque absorbable inferior vena cava filter in pigs. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.06.527049. [PMID: 36798362 PMCID: PMC9934538 DOI: 10.1101/2023.02.06.527049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The use of absorbable inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) eliminates risks and complications associated with the use of retrievable metallic filters. Radiopacity of radiolucent PPDO IVCFs can be improved with the incorporation of nanoparticles (NPs) made of high-atomic number materials such as gold and bismuth. In this study, we focused on incorporating tungsten NPs (WNPs), along with polyhydroxybutyrate (PHB), polycaprolactone (PCL), and polyvinylpyrrolidone (PVP) polymers to increase the surface adsorption of the WNPs. We compared the imaging properties of WNPs with single-polymer PHB (W-P) and WNPs with polymer blends consisting of PHB, PCL, and PVP (W-PB). Our in vitro analyses using PPDO sutures showed enhanced radiopacity with either W-P or W-PB coating, without compromising the inherent physico-mechanical properties of the PPDO sutures. We observed a more sustained release of WNPs from W-PB-coated sutures than W-P-coated sutures. We successfully deployed W-P- and W-PB-coated IVCFs into the inferior vena cava of pig models, with monitoring by fluoroscopy. At the time of deployment, W-PB-coated IVCFs showed a 2-fold increase in radiopacity compared to W-P-coated IVCFs. Longitudinal monitoring of in vivo IVCFs over a 12-week period showed a drastic decrease in radiopacity at week 3 for both filters. Results of this study highlight the utility of NPs and polymers for enhancing radiopacity of medical devices; however, different methods of incorporating NPs and polymers can still be explored to improve the efficacy, safety, and quality of absorbable IVCFs.
Collapse
|
4
|
Klusman C, Martin B, Perez JVD, Barcena AJR, Bernardino MR, San Valentin EMD, Damasco JA, Mundo HCD, Court K, Godin B, Fowlkes N, Bouchard R, Cheng J, Huang SY, Melancon MP. Rosuvastatin-Eluting Gold Nanoparticle-Loaded Perivascular Implantable Wrap for Enhanced Arteriovenous Fistula Maturation in a Murine Model. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.02.526859. [PMID: 36778365 PMCID: PMC9915671 DOI: 10.1101/2023.02.02.526859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background Arteriovenous fistulas (AVFs) are a vital intervention for patients requiring hemodialysis, but they also contribute to overall mortality due to access malfunction. The most common cause of both AVF non-maturation and secondary failure is neointimal hyperplasia (NIH). Absorbable polycaprolactone (PCL) perivascular wraps can address these complications by incorporating drugs to attenuate NIH, such as rosuvastatin (ROSU), and metallic nanoparticles for visualization and device monitoring. Objectives This study aimed to assess the impacts of gold nanoparticle (AuNP) and ROSU-loaded perivascular wraps on vasculature NIH and AVF maturation and patency in a chronic kidney disease rat model. Methods Electrospun wraps containing combinations of PCL, AuNP, and ROSU were monitored for in vitro drug elution, nanoparticle release, tensile strength, and cell viability. Perivascular wraps were implanted in chronic kidney disease rats for in vivo ultrasound (US) and micro-computed tomography (mCT) imaging. AVF specimens were collected for histological analyses. Results No difference in cell line viability was observed in ROSU-containing grafts. In vitro release studies of ROSU and AuNPs correlated with decreasing radiopacity over time on in vivo mCT analysis. The mCT study also demonstrated increased radiopacity in AuNP-loaded wraps compared with PCL and control. The addition of ROSU demonstrated decreased US and histologic measurements of NIH. Conclusions The reduced NIH seen with ROSU-loading of perivascular wraps suggests a synergistic effect between mechanical support and anti-hyperplasia medication. Furthermore, the addition of AuNPs increased wrap radiopacity. Together, our results show that radiopaque, AuNP-, and ROSU-loaded PCL grafts induce AVF maturation and suppress NIH while facilitating optimal implanted device visualization.
Collapse
|
5
|
San Valentin EMD, Barcena AJR, Klusman C, Martin B, Melancon MP. Nano-embedded medical devices and delivery systems in interventional radiology. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1841. [PMID: 35946543 PMCID: PMC9840652 DOI: 10.1002/wnan.1841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/01/2022] [Accepted: 07/12/2022] [Indexed: 01/31/2023]
Abstract
Nanomaterials research has significantly accelerated the development of the field of vascular and interventional radiology. The incorporation of nanoparticles with unique and functional properties into medical devices and delivery systems has paved the way for the creation of novel diagnostic and therapeutic procedures for various clinical disorders. In this review, we discuss the advancements in the field of interventional radiology and the role of nanotechnology in maximizing the benefits and mitigating the disadvantages of interventional radiology theranostic procedures. Several nanomaterials have been studied to improve the efficacy of interventional radiology interventions, reduce the complications associated with medical devices, improve the accuracy and efficiency of drug delivery systems, and develop innovative imaging modalities. Here, we summarize the recent progress in the development of medical devices and delivery systems that link nanotechnology in vascular and interventional radiology. This article is categorized under: Diagnostic Tools > Diagnostic Nanodevices Diagnostic Tools > In Vivo Nanodiagnostics and Imaging Therapeutic Approaches and Drug Discovery > Nanomedicine for Cardiovascular Disease.
Collapse
Affiliation(s)
- Erin Marie D San Valentin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- St. Luke's Medical Center College of Medicine-William H. Quasha Memorial, Quezon City, Philippines
| | | | - Carleigh Klusman
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Benjamin Martin
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Marites P Melancon
- The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
| |
Collapse
|
6
|
He J, Wang Z, Zhou YX, Ni H, Sun X, Xue J, Chen S, Wang S, Niu M. The application of inferior vena cava filters in orthopaedics and current research advances. Front Bioeng Biotechnol 2022; 10:1045220. [PMID: 36479430 PMCID: PMC9719953 DOI: 10.3389/fbioe.2022.1045220] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/07/2022] [Indexed: 11/19/2023] Open
Abstract
Deep vein thrombosis is a common clinical peripheral vascular disease that occurs frequently in orthopaedic patients and may lead to pulmonary embolism (PE) if the thrombus is dislodged. pulmonary embolism can be prevented by placing an inferior vena cava filter (IVCF) to intercept the dislodged thrombus. Thus, IVCFs play an important role in orthopaedics. However, the occurrence of complications after inferior vena cava filter placement, particularly recurrent thromboembolism, makes it necessary to carefully assess the risk-benefit of filter placement. There is no accepted statement as to whether IVCF should be placed in orthopaedic patients. Based on the problems currently displayed in the use of IVCFs, an ideal IVCF is proposed that does not affect the vessel wall and haemodynamics and intercepts thrombi well. The biodegradable filters that currently exist come close to the description of an ideal filter that can reduce the occurrence of various complications. Currently available biodegradable IVCFs consist of various organic polymeric materials. Biodegradable metals have shown good performance in making biodegradable IVCFs. However, among the available experimental studies on degradable filters, there are no experimental studies on filters made of degradable metals. This article reviews the use of IVCFs in orthopaedics, the current status of filters and the progress of research into biodegradable vena cava filters and suggests possible future developments based on the published literature by an electronic search of PubMed and Medline databases for articles related to IVCFs searchable by October 2022 and a manual search for citations to relevant studies.
Collapse
Affiliation(s)
| | | | | | - Hongbo Ni
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - XiaoHanu Sun
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jian Xue
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Shanshan Chen
- Institute of Metal Research, Chinese Academy of Sciences (CAS), Shenyang, Liaoning, China
| | - Shuai Wang
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Meng Niu
- The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| |
Collapse
|
7
|
Lv J, Zhang L, Du W, Ling G, Zhang P. Functional gold nanoparticles for diagnosis, treatment and prevention of thrombus. J Control Release 2022; 345:572-585. [DOI: 10.1016/j.jconrel.2022.03.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 12/23/2022]
|
8
|
Damasco JA, Huang SY, Perez JVD, Manongdo JAT, Dixon KA, Williams ML, Jacobsen MC, Barbosa R, Canlas GM, Chintalapani G, Melancon AD, Layman RR, Fowlkes NW, Whitley EM, Melancon MP. Bismuth Nanoparticle and Polyhydroxybutyrate Coatings Enhance the Radiopacity of Absorbable Inferior Vena Cava Filters for Fluoroscopy-Guided Placement and Longitudinal Computed Tomography Monitoring in Pigs. ACS Biomater Sci Eng 2022; 8:1676-1685. [PMID: 35343679 PMCID: PMC9045416 DOI: 10.1021/acsbiomaterials.1c01449] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Inferior vena cava filters (IVCFs) constructed with poly-p-dioxanone (PPDO) are promising alternatives to metallic filters and their associated risks and complications. Incorporating high-Z nanoparticles (NPs) improves PPDO IVCFs' radiopacity without adversely affecting their safety or performance. However, increased radiopacity from these studies are insufficient for filter visualization during fluoroscopy-guided PPDO IVCF deployment. This study focuses on the use of bismuth nanoparticles (BiNPs) as radiopacifiers to render sufficient signal intensity for the fluoroscopy-guided deployment and long-term CT monitoring of PPDO IVCFs. The use of polyhydroxybutyate (PHB) as an additional layer to increase the surface adsorption of NPs resulted in a 2-fold increase in BiNP coating (BiNP-PPDO IVCFs, 3.8%; BiNP-PPDO + PHB IVCFs, 6.2%), enabling complete filter visualization during fluoroscopy-guided IVCF deployment and, 1 week later, clot deployment. The biocompatibility, clot-trapping efficacy, and mechanical strength of the control PPDO (load-at-break, 6.23 ± 0.13 kg), BiNP-PPDO (6.10 ± 0.09 kg), and BiNP-PPDO + PHB (6.15 ± 0.13 kg) IVCFs did not differ significantly over a 12-week monitoring period in pigs. These results indicate that BiNP-PPDO + PHB can increase the radiodensity of a novel absorbable IVCF without compromising device strength. Visualizing the device under conventional radiographic imaging is key to allow safe and effective clinical translation of the device.
Collapse
Affiliation(s)
- Jossana A Damasco
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Steven Y Huang
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Joy Vanessa D Perez
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | | | - Katherine A Dixon
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Malea L Williams
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Megan C Jacobsen
- Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Roland Barbosa
- Covalent Metrology Sunnyvale, Sunnyvale, California 94085, United States
| | - Gino Martin Canlas
- Department of Chemistry, Lamar University, Beaumont, Texas 77710, United States
| | | | - Adam D Melancon
- Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Rick R Layman
- Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Natalie W Fowlkes
- Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Elizabeth M Whitley
- Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| | - Marites P Melancon
- Departments of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
- UT Health Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, United States
| |
Collapse
|
9
|
Evaluation of a Clinical Decision Support Tool to Predict Permanence of Retrievable Inferior Vena Cava Filters. J Vasc Surg Venous Lymphat Disord 2022; 10:894-899. [DOI: 10.1016/j.jvsv.2022.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/12/2022] [Indexed: 11/19/2022]
|
10
|
Zheng H, Peng H, Wang P, Li H, Li L, Du Y, Lv G. In vitro and in vivo evaluation of degradability and biocompatibility of poly(p‐dioxanone) hemostatic clips for laparoscopic surgery. J Appl Polym Sci 2021. [DOI: 10.1002/app.50772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Heng Zheng
- College of Physics Sichuan University Chengdu Sichuan China
| | - Haitao Peng
- College of Physics Sichuan University Chengdu Sichuan China
| | - Peng Wang
- Sichuan Guona Technology Company Chengdu Sichuan China
| | - Hong Li
- College of Physics Sichuan University Chengdu Sichuan China
| | - Lin Li
- College of Physics Sichuan University Chengdu Sichuan China
| | - Yan Du
- College of Physics Sichuan University Chengdu Sichuan China
| | - Guoyu Lv
- College of Physics Sichuan University Chengdu Sichuan China
| |
Collapse
|
11
|
Pillai A, Kathuria M, Bayona Molano MDP, Sutphin P, Kalva SP. An expert spotlight on inferior vena cava filters. Expert Rev Hematol 2021; 14:593-605. [PMID: 34139952 DOI: 10.1080/17474086.2021.1943350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Introduction: Inferior vena cava (IVC) filters are mechanical filtration devices designed as an alternative to surgical ligation/plication of the IVC. Their use has been controversial, especially with the introduction of retrievable filters and expanded/prophylactic indications.Areas covered: Authors discuss the types of available IVC filters, indications for placement, evidence on their effectiveness in general and specific patient populations, procedural considerations, off-label use, complications, and filter retrieval. This review is based on manuscripts/abstracts published from 1960 to 2021 on venous thromboembolism and IVC filters.Expert opinion: Despite the limited data on their effectiveness and survival benefit, IVC filters continue to play an important role in the treatment of patients with venous thromboembolism (VTE) who cannot receive standard anticoagulation. There is no role of IVC filters in patients without VTE. While retrievable filters are desirable for short-term use, a dedicated team-based approach, and advanced training are required for their successful removal. Newer devices are promising in improving patient safety . The device manufacturers and regulatory agencies should consider specific approaches to track device-related adverse events. Population-based studies are required to establish optimal patient population who would benefit from these devices. .
Collapse
Affiliation(s)
- Anil Pillai
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Manoj Kathuria
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Patrick Sutphin
- Division of Interventional Radiology, Department of Radiology, Massachusetts General Hospital, Boston, USA.,Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sanjeeva P Kalva
- Division of Interventional Radiology, Department of Radiology, Massachusetts General Hospital, Boston, USA.,Harvard Medical School, Massachusetts General Hospital, Boston, Massachusetts, USA
| |
Collapse
|
12
|
Perez JVD, Jacobsen MC, Damasco JA, Melancon A, Huang SY, Layman RR, Melancon MP. Optimization of the differentiation and quantification of high-Z nanoparticles incorporated in medical devices for CT-guided interventions. Med Phys 2020; 48:300-312. [PMID: 33216978 DOI: 10.1002/mp.14601] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/09/2020] [Accepted: 11/10/2020] [Indexed: 01/18/2023] Open
Abstract
PURPOSE Material differentiation has been made possible using dual-energy computed tomography (DECT), in which the unique, energy-dependent attenuating characteristics of materials can provide new diagnostic information. One promising application is the clinical integration of biodegradable polymers as temporary implantable medical devices impregnated with high-atomic number (high-Z) materials. The purpose of this study was to explore the incorporation of high atomic number (high-Z) contrast materials in a bioresorbable inferior vena cava filter for advanced CT-based monitoring of its location and differentiating from surrounding materials. MATERIALS AND METHODS Imaging optimization and calibration studies were performed using a body phantom. The dual-energy CT (DECT) ratios for iron, zirconium, barium, gadolinium, ytterbium, tantalum, tungsten, gold, and bismuth were generated for peak kilovoltage combinations of 80/150Sn, 90/150Sn, and 100/150Sn kVp in dual-source CT via linear regression of the CT numbers at low and high energies. A secondary calibration of the material map to the nominal material concentration was generated to correct for use of materials other than iodine. CT number was calibrated to the material concentration based on single-energy CT (SECT) with additional filtration (150Sn kVp). These quantification methods were applied to monitoring of biodegradable inferior vena cava filters (IVCFs) made of braided poly(p-dioxanone) sutures infused with ultrasmall bismuth nanoparticles (BiNPs) implanted in an adult domestic pig. RESULTS Qualitative material differentiation was optimal for high-Z (>73) contrast agents in DECT. However, quantification became nonlinear and inaccurate as the K-edge of the material increased. Using the high-energy (150Sn kVp) data component as a SECT scan, the linearity of quantification curves was maintained with lower limits of detection than with DECT. Among the materials tested, bismuth had optimal differentiation from iodine in DECT while maintaining increased contrast in high-energy SECT for quantification (11.5% error). Coating the IVCF with BiNPs resulted in markedly greater radiopacity (maximum CT number, 2028 HU) than that of an uncoated IVCF (maximum CT number, 127 HU). Using DECT imaging and processing, the BiNP-IVCF could be clearly differentiated from iodine contrast injected into the inferior vena cava of the pig. CONCLUSIONS These findings may improve widespread integration of medical devices incorporated with high-Z materials into the clinic, where technical success, possible complications, and device integrity can be assessed intraoperatively and postoperatively via DECT imaging.
Collapse
Affiliation(s)
- Joy Vanessa D Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Megan C Jacobsen
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jossana A Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Adam Melancon
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Steven Y Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Rick R Layman
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Marites P Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| |
Collapse
|
13
|
Perez JVD, Singhana B, Damasco J, Lu L, Behlau P, Rojo RD, Whitley EM, Heralde F, Melancon A, Huang S, Melancon MP. Radiopaque scaffolds based on electrospun iodixanol/polycaprolactone fibrous composites. MATERIALIA 2020; 14:100874. [PMID: 32954230 PMCID: PMC7497787 DOI: 10.1016/j.mtla.2020.100874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Grafts based on biodegradable polymer scaffolds are increasingly used in tissue-engineering applications as they facilitate natural tissue regeneration. However, monitoring the position and integrity of these scaffolds over time is challenging due to radiolucency. In this study, we used an electrospinning method to fabricate biodegradable scaffolds based on polycaprolactone (PCL) and iodixanol, a clinical contrast agent. Scaffolds were implanted subcutaneously into C57BL/6 mice and monitored in vivo using longitudinal X-ray imaging and micro-computed tomography (CT). The addition of iodixanol altered the physicochemical properties of the PCL scaffold; notably, as the iodixanol concentration increased, the fiber diameter decreased. Radiopacity was achieved with corresponding signal enhancement as iodine concentration increased while exhibiting a steady time-dependent decrease of 0.96% per day in vivo. The electrospun scaffolds had similar performance with tissue culture-treated polystyrene in supporting the attachment, viability, and proliferation of human mesenchymal stem cells. Furthermore, implanted PCL-I scaffolds had more intense acute inflammatory infiltrate and thicker layers of maturing fibrous tissue. In conclusion, we developed radiopaque, biodegradable, biocompatible scaffolds whose position and integrity can be monitored noninvasively. The successful development of other imaging enhancers may further expand the use of biodegradable scaffolds in tissue engineering applications.
Collapse
Affiliation(s)
- Joy Vanessa D Perez
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila, National Capital Region 1000, Philippines
| | - Burapol Singhana
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Innovative Nanomedicine Research Unit, Chulabhorn International College of Medicine, Thammasat University, Rangsit Campus, Pathum Thani, 12120, Thailand
| | - Jossana Damasco
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Linfeng Lu
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Paul Behlau
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Raniv D Rojo
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- College of Medicine, University of the Philippines Manila, Manila, National Capital Region 1000, Philippines
| | - Elizabeth M Whitley
- Department of Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Francisco Heralde
- College of Medicine, University of the Philippines Manila, Manila, National Capital Region 1000, Philippines
| | - Adam Melancon
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Steven Huang
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marites Pasuelo Melancon
- Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
- Graduate School of Biomedical Sciences, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| |
Collapse
|