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Shi M, Simiele EA, Han B, Pham D, Palomares P, Aguirre M, Gensheimer MF, Vitzthum L, Surucu M, Kovalchuk N. First-Year Experience of IMRT/SBRT Treatments Using a Novel Biology-Guided Radiation Therapy System. Int J Radiat Oncol Biol Phys 2023; 117:e717. [PMID: 37786094 DOI: 10.1016/j.ijrobp.2023.06.2222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study presents the first-year experience of treating patients using intensity-modulated radiation therapy (IMRT) and stereotactic body radiation therapy (SBRT) with the X1 system, the first biology-guided radiation therapy (BgRT) machine installed in a clinical setting. MATERIALS/METHODS A total of 78 patients underwent IMRT and SBRT treatments on the X1 system from May 2021 to May 2022. Clinical and technical data, such as treatment sites, number of pre-treatments kVCT scans, beam on time, patient setup time, imaging time per kVCT, and couch shifts after kVCT match, were collected and analyzed. Additionally, daily machine output stability, patient-specific quality assurance (QA) results, machine uptime, and user survey were also documented and reported. RESULTS The most commonly treated site was the head and neck (63%), followed by the pelvis (23%), thorax (6%), and abdomen (8%). All treatments, except for 5 pelvis patients (6%) who received SBRT treatments for bony metastases, were conventionally fractionated IMRT (CF IMRT). The average number of kVCT scans per fraction is 1.2 ± 0.5 for all treatments. The average beam on time in minutes was 9.2 ± 3.5 for all treatments, 8.4 ± 2.4 for head and neck, 6.7 ± 1.3 for thorax, 10.3 ± 1.6 for abdomen, 11.6 ± 5.1 for CF IMRT pelvis, and 10.8 ± 5.3 for SBRT pelvis. The average patient setup time and imaging time per kVCT was 4.8 ± 2.6 minutes and 4.6 ± 1.5 minutes, respectively. The average couch corrections based on kVCT images were 0.4 ± 4.4 mm, 1.0 ± 4.5 mm, and 1.3 ± 4.3 mm along the x, y, and z direction, respectively; the average couch rotation corrections were 0.1 ± 0.9° for pitch, 0.0 ± 0.9° for roll, and 0.2 ± 1.2° for yaw. The daily machine output was 0.4 ± 1.2% from the baseline. The patient QA had a gamma passing rate of 97.4 ± 2.8%. The machine uptime was 92% of the total treatment time. The kVCT image quality and daily QA process received the highest level of satisfaction, while the treatment workflow for therapists received the lowest level of satisfaction (table 1). CONCLUSION At one year after the installation of the X1 system, this study reports successful treatment of 78 patients using IMRT/ SBRT. With the recent FDA clearance of BgRT, our institution is preparing to treat patients using PET-guidance via a new product release, which should address deficiencies in the current IGRT workflow.
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Danilla SV, Jara RP, Miranda F, Bencina F, Aguirre M, Troncoso E, Erazo CA, Andrades PR, Sepulveda SL, Albornoz CR. Response to "Additional Thoughts on Banning Textured Implants to Prevent Breast Implant-Associated Anaplastic Large Cell Lymphoma (BIA-ALCL)". Aesthet Surg J 2020; 40:NP472-NP473. [PMID: 32539078 DOI: 10.1093/asj/sjaa109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Danilla SV, Jara RP, Miranda F, Bencina F, Aguirre M, Troncoso E, Erazo CA, Andrades PR, Sepulveda SL, Albornoz CR. Response to "Banning Textured Implants Is a Rational Decision to Eliminate the Risk of Breast Implant-Associated Anaplastic Large-Cell Lymphoma (BIA-ALCL)". Aesthet Surg J 2020; 40:NP478-NP479. [PMID: 32618330 DOI: 10.1093/asj/sjaa108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Danilla SV, Jara RP, Miranda F, Bencina F, Aguirre M, Troncoso E, Erazo CA, Andrades PR, Sepulveda SL, Albornoz CR. Is Banning Texturized Implants to Prevent Breast Implant-Associated Anaplastic Large Cell Lymphoma a Rational Decision? A Meta-Analysis and Cost-Effectiveness Study. Aesthet Surg J 2020; 40:721-731. [PMID: 31761953 DOI: 10.1093/asj/sjz343] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an emergent disease that threatens patients with texturized breast implants. Major concerns about the safety of these implants are leading to global changes to restrict the utilization of this product. The principal alternative is to perform breast augmentation utilizing smooth implants, given the lack of association with BIA-ALCL. The implications and costs of this intervention are unknown. OBJECTIVES The authors of this study determined the cost-effectiveness of smooth implants compared with texturized implants for breast augmentation surgery. METHODS A tree decision model was utilized to analyze the cost-effectiveness. Model input parameters were derived from published sources. The capsular contracture (CC) rate was calculated from a meta-analysis. Effectiveness measures were life years, avoided BIA-ALCL, avoided deaths, and avoided reoperations. A sensitivity analysis was performed to test the robustness of the model. RESULTS For avoided BIA-ALCL, the incremental cost was $18,562,003 for smooth implants over texturized implants. The incremental cost-effectiveness ratio was negative for life years, and avoided death and avoided reoperations were negative. The sensitivity analysis revealed that to avoid 1 case of BIA-ALCL, the utilization of smooth implants would be cost-effective for a risk of developing BIA-ALCL equal to or greater than 1:196, and there is a probability of CC with smooth implants equal to or less than 0.096. CONCLUSIONS The utilization of smooth implants to prevent BIA-ALCL is not cost-effective. Banning texturized implants to prevent BIA-ALCL may involve additional consequences, which should be considered in light of higher CC rates and more reoperations associated with smooth implants than with texturized implants.
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Ferreyra C, Sánchez MJ, Aguirre M, Acha C, Bengió S, Lecourt J, Lüders U, Rubi D. Selective activation of memristive interfaces in TaO x -based devices by controlling oxygen vacancies dynamics at the nanoscale. NANOTECHNOLOGY 2020; 31:155204. [PMID: 31860894 DOI: 10.1088/1361-6528/ab6476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of novel devices for neuromorphic computing and non-traditional logic operations largely relies on the fabrication of well controlled memristive systems with functionalities beyond standard bipolar behavior and digital ON-OFF states. In the present work we demonstrate for Ta2O5-based devices that it is possible to selectively activate/deactivate two series memristive interfaces in order to obtain clockwise or counter-clockwise multilevel squared remanent resistance loops, just by controlling both the electroforming process and the (a)symmetry of the applied stimuli, and independently of the nature of the used metallic electrodes. Based on our thorough characterization, analysis and modeling, we show that the physical origin of this electrical behavior relies on controlled oxygen vacancies electromigration between three different nanoscopic zones of the active Ta2O5-x layer: a central one and two quasi-symmetric interfaces with reduced TaO2-h(y) layers. Our devices fabrication process is rather simple as it implies the room temperature deposition of only one CMOS compatible oxide-Ta-oxide-and one metal, suggesting that it might be possible to take advantage of these properties at low cost and with easy scability. The tunable opposite remanent resistance loops circulations with multiple-analogic-intermediate stable states allows mimicking the adaptable synaptic weight of biological systems and presents potential for non-standard logic devices.
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Fernandez-Trujillo L, Lores J, Aguirre M, Sua L. P2.16 PD-L1 Expression in a Population with Non-Small Cell Lung Cancer in a Reference Healthcare Center in Latin-America. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sua L, Lores J, Aguirre M, Castro A, Fernandez-Trujillo L. EP1.04-37 Biomarkers in Non-Small Cell Lung Cancer: Expression of PD-L1 Protein and p16 in Squamous Cell Carcinoma Histologic Subtype. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fernandez-Trujillo L, Morales E, Lores J, Aguirre M, Castro A, Sua L. EP1.05-03 Therapeutic Bronchoscopy in Multimodal Therapy for the Management of Central Airway Obstruction. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sua L, Lores J, Aguirre M, Fernandez-Trujillo L. P2.04-70 PD-L1 Expression in a Population with Non-Small Cell Lung Cancer in a Reference Healthcare Center in Latin-America. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fernandez-Trujillo L, Morales E, Lores J, Aguirre M, Sua L. EP1.05-10 Metastasis from a Primary Melanoma of the Sinonasal Cavity: A Case Report. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fernandez-Trujillo L, Morales E, Lores J, Aguirre M, Sua L, Velasquez M. EP1.15-17 Giant Thymolipoma in a Young Woman: A Case Report. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Dunstan J, Aguirre M, Bastías M, Nau C, Glass TA, Tobar F. Predicting nationwide obesity from food sales using machine learning. Health Informatics J 2019; 26:652-663. [PMID: 31106648 DOI: 10.1177/1460458219845959] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The obesity epidemic progresses everywhere across the globe, and implementing frequent nationwide surveys to measure the percentage of obese population is costly. Conversely, country-level food sales information can be accessed inexpensively through different suppliers on a regular basis. This study applies a methodology to predict obesity prevalence at the country-level based on national sales of a small subset of food and beverage categories. Three machine learning algorithms for nonlinear regression were implemented using purchase and obesity prevalence data from 79 countries: support vector machines, random forests and extreme gradient boosting. The proposed method was validated in terms of both the absolute prediction error and the proportion of countries for which the obesity prevalence was predicted satisfactorily. We found that the most-relevant food category to predict obesity is baked goods and flours, followed by cheese and carbonated drinks.
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Bedient C, Kaye L, Raman A, Garner F, Aguirre M, Shapiro B. The optimal size of ovarian follicles at oocyte collection. Fertil Steril 2019. [DOI: 10.1016/j.fertnstert.2019.02.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Aguirre M, Bartha E, Clippe S, Fleury B, Romy P, Zahra N. 3. Feasibility of prostate treatment plan based on MRI images. Phys Med 2017. [DOI: 10.1016/j.ejmp.2017.10.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Wang H, Rijk A, Aguirre M, Wang A, Wang K, Dastani Z, Agulnik J, Cohen V, Small D, Pepe C, Sakr L, Kasymjanova G, Van Kempen L, Spatz A. P3.02-055 Detecting ALK, ROS1 and RET Gene Translocations in Non-Small Cell Lung Cancer (NSCLC) with the NanoString Platform. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Wang H, Spatz A, Aguirre M, Agulnik J, Cohen V, Small D, Pepe C, Sakr L, Kasymjanova G, Wang A, Owen S, Tsao M, Kempen L. PUB079 Detection of the EGFR P.(T790M) Mutation by Different Methods: A Small Comparison Case Study. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tamayo M, Besoaín-Saldaña A, Aguirre M, Leiva J. Teamwork: relevance and interdependence of interprofessional education. Rev Saude Publica 2017; 51:39. [PMID: 28489187 PMCID: PMC5396499 DOI: 10.1590/s1518-8787.2017051006816] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 03/29/2016] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Determine the perception of university students regarding interprofessional and interdependent work between team members in their inclusion in primary care. METHODS Analytical cross-sectional study. The sampling had a probabilistic, stratified random type with 95% confidence and 5% margin of error. Seven-hundred and four students of Public Universities in Santiago (Chile) answered self-administered questionnaire. RESULTS Ninety-seven point eight of students say that interprofessional work is important; 27.1% of them declare that their university did not seem to show that their study plans were important. The professionals listed as most important in teams are physicians and nurses. CONCLUSIONS Spaces for development and institutional support are key elements to promote interprofessional work. If this competence can involve each academic unit in their different formative spaces there will be a significant contribution to said promotion. Teamwork is a pending task.
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Aguirre M, Venema K. Challenges in simulating the human gut for understanding the role of the microbiota in obesity. Benef Microbes 2016; 8:31-53. [PMID: 27903093 DOI: 10.3920/bm2016.0113] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
There is an elevated incidence of cases of obesity worldwide. Therefore, the development of strategies to tackle this condition is of vital importance. This review focuses on the necessity of optimising in vitro systems to model human colonic fermentation in obese subjects. This may allow to increase the resolution and the physiological relevance of the information obtained from this type of studies when evaluating the potential role that the human gut microbiota plays in obesity. In light of the parameters that are currently used for the in vitro simulation of the human gut (which are mostly based on information derived from healthy subjects) and the possible difference with an obese condition, we propose to revise and improve specific standard operating procedures.
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Bedient C, Daneshmand S, Garner F, Aguirre M, Hudson C, Shapiro B. Factors associated with use of elective single embryo transfer and multiple pregnancy risk at fertility centers in the United States. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2015.12.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ballard N, Simula A, Aguirre M, Leiza JR, van Es S, Asua JM. Synthesis of poly(methyl methacrylate) and block copolymers by semi-batch nitroxide mediated polymerization. Polym Chem 2016. [DOI: 10.1039/c6py01634k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The limits of control of the molecular weight and polymer structure in the semi-batch solution polymerization of methyl methacrylate by NMP are explored.
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Shapiro B, Daneshmand S, Garner F, Aguirre M, Hudson C. Embryo-endometrium asynchrony may affect thawed embryo cycles using genetically screened blastocysts. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Horeman T, Schilder F, Aguirre M, Kerkhoffs GMMJ, Tuijthof GJM. Design and Preliminary Evaluation of a Stiff Steerable Cutter for Arthroscopic Procedures. J Med Device 2015. [DOI: 10.1115/1.4030506] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
This article describes a novel and simple shaft actuated tip articulation (SATA) mechanism that allows arthroscopic instruments to articulate while remaining stiff. Since the SATA mechanism requires only independent rotation of two tubes for hinge articulation, cables, gears, or other internal components that are normally found in steerable endoscopic instruments become obsolete. The SATA mechanism was integrated in a new steerable cutter prototype and tested. Early user, mechanical strength and cadaver experiments were performed that indicate that this first prototype withstands an axial and sideways force of 100 N and 20 N, that trained users can (dis)assemble the instrument in less than 1.5 min and that a surgeon is able to reach all important locations on the menisci.
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Lopez-Pedrera C, Perez-Sanchez C, Aguirre M, Velasco F, Ruiz-Limon P, Barbarroja N, Jimenez-Gomez Y, Segui P, Collantes-Estevez E, Fernandez del Rio L, Vilalba J, Gonzalez-Reyes J, Cuadrado M. THU0398 Beneficial Effects of in Vivo Ubiquinol Supplementation on Athero-Thrombosis Prevention in Antiphospholipid Syndrome Patients. Preliminary Results of a Clinical Trial. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Perez-Sanchez C, Aguirre M, Ruiz-Limόn P, Barbarroja N, Jiménez-Gόmez Y, Collantes-Estévez E, Cuadrado M, González-Conejero R, Martínez C, Lόpez-Pedrera C. OP0156 In Vitro Treatment with Anti-Cardiolipin and Anti-DSDNA Antibodies Modifies the Expression of Micrornas Related to Cardiovascular Disease in Patients with Antiphospholipid Syndrome and Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Perez-Sanchez C, Aguirre M, Galindo-Izquierdo M, Ruiz-Limon P, Barbarroja N, Jiménez-Gόmez Y, Segui P, Collantes-Estévez E, Cuadrado M, Lόpez-Pedrera C. AB0165 Regulation of Atherothrombosis in Systemic Lupus Erythematosus. Role of Different Monocyte Subsets, Netosis Involvement, and Effects of Anti-Dsdna Antibodies. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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