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2. Artificial Intelligence and Democratization of the Use of Lung Ultrasound in COVID-19: On the Feasibility of Automatic Calculation of Lung Ultrasound Score

Author

Jorge Camacho, Mario Muñoz, Vicente Genovés, Joaquín L. Herraiz, Ignacio Ortega, Adrián Belarra, Ricardo González, David Sánchez, Roberto Carlos Giacchetta, Ángela Trueba-Vicente, and Yale Tung-Chen

Subjects
lung ultrasonography (LUS), pneumonia, computer aided diagnosis, Coronavirus disease 2019 (COVID-19), artificial intelligence (AI), Computer applications to medicine. Medical informatics, R858-859.7
Abstract

During the COVID-19 pandemic, lung ultrasound has been revealed as a powerful technique for diagnosis and follow-up of pneumonia, the principal complication of SARS-CoV-2 infection. Nevertheless, being a relatively new and unknown technique, the lack of trained personnel has limited its application worldwide. Computer-aided diagnosis could possibly help to reduce the learning curve for less experienced physicians, and to extend such a new technique such as lung ultrasound more quickly. This work presents the preliminary results of the ULTRACOV (Ultrasound in Coronavirus disease) study, aimed to explore the feasibility of a real-time image processing algorithm for automatic calculation of the lung ultrasound score (LUS). A total of 28 patients positive on COVID-19 were recruited and scanned in 12 thorax zones following the lung score protocol, saving a 3 s video at each probe position. Those videos were evaluated by an experienced physician and by a custom developed automated detection algorithm, looking for A-Lines, B-Lines, consolidations, and pleural effusions. The agreement between the findings of the expert and the algorithm was 88.0% for B-Lines, 93.4% for consolidations and 99.7% for pleural effusion detection, and 72.8% for the individual video score. The standard deviation of the patient lung score difference between the expert and the algorithm was ±2.2 points over 36. The exam average time with the ULTRACOV prototype was 5.3 min, while with a conventional scanner was 12.6 min. Conclusion: A good agreement between the algorithm output and an experienced physician was observed, which is a first step on the feasibility of developing a real-time aided-diagnosis lung ultrasound equipment. Additionally, the examination time was reduced to less than half with regard to a conventional ultrasound exam. Acquiring a complete lung ultrasound exam within a few minutes is possible using fairly simple ultrasound machines that are enhanced with artificial intelligence, such as the one we propose. This step is critical to democratize the use of lung ultrasound in these difficult times.

Published
2022
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3. Inter-Rater Variability in the Evaluation of Lung Ultrasound in Videos Acquired from COVID-19 Patients

Author

Joaquin L. Herraiz, Clara Freijo, Jorge Camacho, Mario Muñoz, Ricardo González, Rafael Alonso-Roca, Jorge Álvarez-Troncoso, Luis Matías Beltrán-Romero, Máximo Bernabeu-Wittel, Rafael Blancas, Antonio Calvo-Cebrián, Ricardo Campo-Linares, Jaldún Chehayeb-Morán, Jose Chorda-Ribelles, Samuel García-Rubio, Gonzalo García-de-Casasola, Adriana Gil-Rodrigo, César Henríquez-Camacho, Alba Hernandez-Píriz, Carlos Hernandez-Quiles, Rafael Llamas-Fuentes, Davide Luordo, Raquel Marín-Baselga, María Cristina Martínez-Díaz, María Mateos-González, Manuel Mendez-Bailon, Francisco Miralles-Aguiar, Ramón Nogue, Marta Nogué, Borja Ortiz de Urbina-Antia, Alberto Ángel Oviedo-García, José M. Porcel, Santiago Rodriguez, Diego Aníbal Rodríguez-Serrano, Talía Sainz, Ignacio Manuel Sánchez-Barrancos, Marta Torres-Arrese, Juan Torres-Macho, Angela Trueba Vicente, Tomas Villén-Villegas, Juan José Zafra-Sánchez, and Yale Tung-Chen

Subjects
coronavirus disease 2019, inter-observer agreement, inter-rater reliability, lung ultrasound, point-of-care ultrasound, reliability, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract

Lung ultrasound (LUS) allows for the detection of a series of manifestations of COVID-19, such as B-lines and consolidations. The objective of this work was to study the inter-rater reliability (IRR) when detecting signs associated with COVID-19 in the LUS, as well as the performance of the test in a longitudinal or transverse orientation. Thirty-three physicians with advanced experience in LUS independently evaluated ultrasound videos previously acquired using the ULTRACOV system on 20 patients with confirmed COVID-19. For each patient, 24 videos of 3 s were acquired (using 12 positions with the probe in longitudinal and transverse orientations). The physicians had no information about the patients or other previous evaluations. The score assigned to each acquisition followed the convention applied in previous studies. A substantial IRR was found in the cases of normal LUS (κ = 0.74), with only a fair IRR for the presence of individual B-lines (κ = 0.36) and for confluent B-lines occupying < 50% (κ = 0.26) and a moderate IRR in consolidations and B-lines > 50% (κ = 0.50). No statistically significant differences between the longitudinal and transverse scans were found. The IRR for LUS of COVID-19 patients may benefit from more standardized clinical protocols.

Published
2023
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4. Abstracts from the 13th WINFOCUS World Congress on Ultrasound in Emergency & Critical Care

Author

Stephen Alerhand, Adam Nevel, Bret Nelson, Michael Halperin, Felipe Serrano, Gregor Prosen, Tjaša Banović, Stephanie J. Doniger, Mirjana Brvar, Barbara Furman, P. Gallego Rodríguez, Tomas Villén Villegas, A. Trueba Vicente, L. W. Alba Muñoz, C. Guillén Astete, N. Díaz García, N. García Montes, Jimena Areco, Daniel Terra, Fiorella Cavalleri, Siul Salisbury, Ana Rodríguez, Mohd Hashairi Fauzi, Zulaili Asri, Norainal Atiqah Mohamed, Mohmad Aswad Mohmad Amin, Adeline Marie Gnanasegaran Xavier, Mohd Anas Mohd Nor, Khairul Izwan Hashim, Shaik Farid Abdull Wahab, Mohd Boniami Yazid, Mohammad Zikri Ahmad, Ahmad Rasdan Ismail, Rohayu Othman, Mauro Constantini, Julio Pontet, Igor Sviridenko, Pablo Rodriguez, Christian Yic, Diego Méndez, Sylvia Noveri, Ana Soca, Mario Cancela, Pablo Rodriguez Luna, Rodrigo Martella, Silvina Fabretto, Erich Lidstone, Jacob Shapiro, Kristine Robinson, Cecilia Gómez Ravetti, Thiago Bragança Lana Silveira Ataide, Lidia Miranda Barreto Mourão, Nathália Costa Almeida Pinho, Lucas Vieira Chagas, Renan Detoffol Bragança, Vandack Nobre, Maria Thereza Meira Araujo, Luiz Ernani Meira Junior, Luciana Mendes, Jackson Andrade, Nayara Nobre Basso, Anna Cecília Castro e Abreu, José Muniz Pazeli Junior, Ana Luisa Silveira Vieira, Bernardo Costa Lemos, Marinna Marques Rodrigues Saliba, Maurício Dutra Costa, Pedro Andrade Mello, Rosimary Souza Vicentino, Juan Pablo Fernandez, Nicolas Ahualli, Humberto Insfran, Ivana Fatica, Jonatan Bornia, Paula Denardi, Ruben Daniel Algieri, Cristian Flores, Maria Soledad Ferrante, Gustavo Vassia, Carolina Brofman, Victor Ortiz, Elizabeth Krebs, Frances Shofer, Cameron Baston, Christy Moore, Wilma Chan, Anthony J. Dean, Nova Panebianco, Stefano Geniere Nigra, Carmela Graci, Vito Sgromo, Alberto Casazza, Giacomo Veronese, Miguel Montorfano, Giovanni Ricevuti, Marina Marazzi, María Fernanda Barbui, Gabriela Da Campo, Cecilia Ciarlo, Leonardo Vera, Matías Brizuela, Mariana Lía Brizuela, Marcos Aqcuavita, Javier Buchanan, José Alejandro Bujedo, Pablo Bravo Figueroa, V. Ricardo Carvajal, P. Oscar Bravo, N. Monserrat Navarro, J. Rodrigo Adasme, Carolina Méndez, Adi Osman, Azma Haryaty Ahmad, Seri Rohayu Neow Hanzah, and Emilia Mohtar Razali

Subjects
Medical physics. Medical radiology. Nuclear medicine, R895-920
Published
2017
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5. Inter-Rater Variability in the Evaluation of Lung Ultrasound in Videos Acquired from COVID-19 Patients

Author

Herraiz, Joaquin L., primary, Freijo, Clara, additional, Camacho, Jorge, additional, Muñoz, Mario, additional, González, Ricardo, additional, Alonso-Roca, Rafael, additional, Álvarez-Troncoso, Jorge, additional, Beltrán-Romero, Luis Matías, additional, Bernabeu-Wittel, Máximo, additional, Blancas, Rafael, additional, Calvo-Cebrián, Antonio, additional, Campo-Linares, Ricardo, additional, Chehayeb-Morán, Jaldún, additional, Chorda-Ribelles, Jose, additional, García-Rubio, Samuel, additional, García-de-Casasola, Gonzalo, additional, Gil-Rodrigo, Adriana, additional, Henríquez-Camacho, César, additional, Hernandez-Píriz, Alba, additional, Hernandez-Quiles, Carlos, additional, Llamas-Fuentes, Rafael, additional, Luordo, Davide, additional, Marín-Baselga, Raquel, additional, Martínez-Díaz, María Cristina, additional, Mateos-González, María, additional, Mendez-Bailon, Manuel, additional, Miralles-Aguiar, Francisco, additional, Nogue, Ramón, additional, Nogué, Marta, additional, Ortiz de Urbina-Antia, Borja, additional, Oviedo-García, Alberto Ángel, additional, Porcel, José M., additional, Rodriguez, Santiago, additional, Rodríguez-Serrano, Diego Aníbal, additional, Sainz, Talía, additional, Sánchez-Barrancos, Ignacio Manuel, additional, Torres-Arrese, Marta, additional, Torres-Macho, Juan, additional, Trueba Vicente, Angela, additional, Villén-Villegas, Tomas, additional, Zafra-Sánchez, Juan José, additional, and Tung-Chen, Yale, additional

Published
2023
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6. Efficacy and Safety of Tinzaparin in Prophylactic, Intermediate and Therapeutic Doses in Non-Critically Ill Patients Hospitalized with COVID-19: The PROTHROMCOVID Randomized Controlled Trial

Author

Nuria Muñoz-Rivas, Jesús Aibar, Cristina Gabara-Xancó, Ángela Trueba-Vicente, Ana Urbelz-Pérez, Vicente Gómez-Del Olmo, Pablo Demelo-Rodríguez, Alberto Rivera-Gallego, Pau Bosch-Nicolau, Montserrat Perez-Pinar, Mónica Rios-Prego, Olga Madridano-Cobo, Laura Ramos-Alonso, Jesús Alonso-Carrillo, Iria Francisco-Albelsa, Edelmira Martí-Saez, Ana Maestre-Peiró, Manuel Méndez-Bailón, José Ángel Hernández-Rivas, and Juan Torres-Macho

Subjects
COVID-19, pulmonary embolism, thrombosis, respiratory insufficiency, low-molecular-weight heparin, General Medicine
Abstract

Hospitalized patients with COVID-19 are at increased risk of thrombosis, acute respiratory distress syndrome and death. The optimal dosage of thromboprophylaxis is unknown. The aim was to evaluate the efficacy and safety of tinzaparin in prophylactic, intermediate, and therapeutic doses in non-critical patients admitted for COVID-19 pneumonia. PROTHROMCOVID is a randomized, unblinded, controlled, multicenter trial enrolling non-critical, hospitalized adult patients with COVID-19 pneumonia. Patients were randomized to prophylactic (4500 IU), intermediate (100 IU/kg), or therapeutic (175 IU/kg) groups. All tinzaparin doses were administered once daily during hospitalization, followed by 7 days of prophylactic tinzaparin at discharge. The primary efficacy outcome was a composite endpoint of symptomatic systemic thrombotic events, need for invasive or non-invasive mechanical ventilation, or death within 30 days. The main safety outcome was major bleeding at 30 days. Of the 311 subjects randomized, 300 were included in the prespecified interim analysis (mean [SD] age, 56.7 [14.6] years; males, 182 [60.7%]). The composite endpoint at 30 days from randomization occurred in 58 patients (19.3%) of the total population; 19 (17.1 %) in the prophylactic group, 20 (22.1%) in the intermediate group, and 19 (18.5%) in the therapeutic dose group (p = 0.72). No major bleeding event was reported; non-major bleeding was observed in 3.7% of patients, with no intergroup differences. Due to these results and the futility analysis, the trial was stopped. In non-critically ill COVID-19 patients, intermediate or full-dose tinzaparin compared to standard prophylactic doses did not appear to affect the risk of thrombotic event, non-invasive ventilation, or mechanical ventilation or death. Trial RegistrationClinicalTrials.gov Identifier (NCT04730856). Edura-CT registration number: 2020-004279-42.

Published
2022
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7. Inter-rater Variability in the Evaluation of Lung Ultrasound on Videos Acquired from COVID-19 Patients

Author

Herraiz, Joaquin L., primary, Freijo, Clara, additional, Camacho, Jorge, additional, Muñoz, Mario, additional, González, Ricardo, additional, Alonso-Roca, Rafael, additional, Álvarez-Troncoso, Jorge, additional, Beltrán-Romero, Luis Matías, additional, Bernabeu-Wittel, Máximo, additional, Blancas, Rafael, additional, Calvo-Cebrián, Antonio, additional, Campo-Linares, Ricardo, additional, Chehayeb-Morán, Jaldún, additional, Chorda-Ribelles, Jose, additional, García-Rubio, Samuel, additional, García-de-Casasola, Gonzalo, additional, Gil-Rodrigo, Adriana, additional, Henríquez-Camacho, César, additional, Hernandez-Píriz, Alba, additional, Hernandez-Quiles, Carlos, additional, Llamas-Fuentes, Rafael, additional, Luordo, Davide, additional, Marín-Baselga, Raquel, additional, Martínez-Díaz, María Cristina, additional, Mateos-González, María, additional, Mendez-Bailon, Manuel, additional, Miralles-Aguiar, Francisco, additional, Nogue, Ramón, additional, Nogué, Marta, additional, Ortiz de Urbina-Antia, Borja, additional, Oviedo-García, Alberto Ángel, additional, Porcel, José M., additional, Rodriguez, Santiago, additional, Rodríguez-Serrano, Diego Aníbal, additional, Sainz, Talía, additional, Sánchez-Barrancos, Ignacio Manuel, additional, Torres-Arrese, Marta, additional, Torres-Macho, Juan, additional, Trueba-Vicente, Ángela, additional, Villen-Villegas, Tomas, additional, Zafra-Sánchez, Juan José, additional, and Tung-Chen, Yale, additional

Published
2022
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8. Optimal thromboprophylaxis and anticoagulant strategies in patients with COVID-19 pneumonia. The PROTHROMCOVID Trial

Author

Munoz-Rivas, N, primary, Aibar Gallizo, J, additional, Gabara-Xanco, C, additional, Trueba-Vicente, A, additional, Urbelz-Perez, A, additional, Gomez-Del Olmo, V, additional, Demelo-Rodriguez, P, additional, Rivera-Gallego, A, additional, Bosch-Nicolau, P A U, additional, Nieto Rodriguez, J A, additional, Rios-Prego, M, additional, Madridano-Cobo, O, additional, Mendez, M, additional, Hernandez-Rivas, J A, additional, and Torres-Macho, J, additional

Published
2022
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9. Efficacy and Safety of Tinzaparin in Prophylactic, Intermediate and Therapeutic Doses in Non-Critically Ill Patients Hospitalized with COVID-19: The PROTHROMCOVID Randomized Controlled Trial

Author

Muñoz-Rivas, Nuria, primary, Aibar, Jesús, additional, Gabara-Xancó, Cristina, additional, Trueba-Vicente, Ángela, additional, Urbelz-Pérez, Ana, additional, Gómez-Del Olmo, Vicente, additional, Demelo-Rodríguez, Pablo, additional, Rivera-Gallego, Alberto, additional, Bosch-Nicolau, Pau, additional, Perez-Pinar, Montserrat, additional, Rios-Prego, Mónica, additional, Madridano-Cobo, Olga, additional, Ramos-Alonso, Laura, additional, Alonso-Carrillo, Jesús, additional, Francisco-Albelsa, Iria, additional, Martí-Saez, Edelmira, additional, Maestre-Peiró, Ana, additional, Méndez-Bailón, Manuel, additional, Hernández-Rivas, José Ángel, additional, and Torres-Macho, Juan, additional

Published
2022
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10. Artificial Intelligence and Democratization of the Use of Lung Ultrasound in COVID-19: On the Feasibility of Automatic Calculation of Lung Ultrasound Score

Author

Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Camacho, Jorge [0000-0001-7528-558X], Camacho Sosa-Días, Jorge, Muñoz, Mario, Genovés, Vicente, Herráiz, Joaquín L., Ortega, Ignacio, Belarra, Adrián, González, Ricardo, Sánchez, David, Giacchetta, Roberto Carlos, Trueba Vicente, Ángela, Tung-Chen, Yale, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), European Commission, Camacho, Jorge [0000-0001-7528-558X], Camacho Sosa-Días, Jorge, Muñoz, Mario, Genovés, Vicente, Herráiz, Joaquín L., Ortega, Ignacio, Belarra, Adrián, González, Ricardo, Sánchez, David, Giacchetta, Roberto Carlos, Trueba Vicente, Ángela, and Tung-Chen, Yale

Abstract

During the COVID-19 pandemic, lung ultrasound has been revealed as a powerful technique for diagnosis and follow-up of pneumonia, the principal complication of SARS-CoV-2 infection. Nevertheless, being a relatively new and unknown technique, the lack of trained personnel has limited its application worldwide. Computer-aided diagnosis could possibly help to reduce the learning curve for less experienced physicians, and to extend such a new technique such as lung ultrasound more quickly. This work presents the preliminary results of the ULTRACOV (Ultrasound in Coronavirus disease) study, aimed to explore the feasibility of a real-time image processing algorithm for automatic calculation of the lung ultrasound score (LUS). A total of 28 patients positive on COVID-19 were recruited and scanned in 12 thorax zones following the lung score protocol, saving a 3 s video at each probe position. Those videos were evaluated by an experienced physician and by a custom developed automated detection algorithm, looking for A-Lines, B-Lines, consolidations, and pleural effusions. The agreement between the findings of the expert and the algorithm was 88.0% for B-Lines, 93.4% for consolidations and 99.7% for pleural effusion detection, and 72.8% for the individual video score. The standard deviation of the patient lung score difference between the expert and the algorithm was ±2.2 points over 36. The exam average time with the ULTRACOV prototype was 5.3 min, while with a conventional scanner was 12.6 min. Conclusion: A good agreement between the algorithm output and an experienced physician was observed, which is a first step on the feasibility of developing a real-time aided-diagnosis lung ultrasound equipment. Additionally, the examination time was reduced to less than half with regard to a conventional ultrasound exam. Acquiring a complete lung ultrasound exam within a few minutes is possible using fairly simple ultrasound machines that are enhanced with artificial intelligence, su

Published
2022

11. Artificial Intelligence and Democratization of the Use of Lung Ultrasound in COVID-19: On the Feasibility of Automatic Calculation of Lung Ultrasound Score

Author

Camacho, Jorge, primary, Muñoz, Mario, additional, Genovés, Vicente, additional, Herraiz, Joaquín L., additional, Ortega, Ignacio, additional, Belarra, Adrián, additional, González, Ricardo, additional, Sánchez, David, additional, Giacchetta, Roberto Carlos, additional, Trueba-Vicente, Ángela, additional, and Tung-Chen, Yale, additional

Published
2022
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12. The Impact of Different Lung Ultrasound Protocols in the Assessment of Lung Lesions in COVID-19 Patients: Is There an Ideal Lung Ultrasound Protocol?

Author

Tung-Chen, Yale, primary, Ossaba-Vélez, Silvia, additional, Acosta Velásquez, Kevin Stephen, additional, Parra-Gordo, Maria Luz, additional, Díez-Tascón, Aurea, additional, Villén-Villegas, Tomás, additional, Montero-Hernández, Esther, additional, Gutiérrez-Villanueva, Andrea, additional, Trueba-Vicente, Ángela, additional, Arenas-Berenguer, Isabel, additional, and Martí de Gracia, Milagros, additional

Published
2021
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13. The Impact of Different Lung Ultrasound Protocols in the Assessment of Lung Lesions in COVID-19 Patients: Is There an Ideal Lung Ultrasound Protocol?

Author

Tomás Villén-Villegas, Kevin Stephen Acosta Velásquez, Ángela Trueba-Vicente, Maria Luz Parra-Gordo, Aurea Díez-Tascón, Silvia Ossaba-Vélez, Andrea Gutiérrez-Villanueva, Yale Tung-Chen, Isabel Arenas-Berenguer, Esther Montero-Hernández, and M. Martí De Gracia

Subjects
Coronavirus disease 2019 (COVID-19), Lung ultrasonography, Intraclass correlation, Lung ultrasonography (LUS), Concordance, Internal Medicine, Point-of-care ultrasonography, Humans, Medicine, Severe acute respiratory syndrome coronavirus 2, Radiology, Nuclear Medicine and imaging, Lung, Ultrasonography, Protocol (science), Original Paper, Coronavirus disease 2019, business.industry, SARS-CoV-2, Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), Ultrasound, COVID-19, General Medicine, Lung ultrasound, medicine.anatomical_structure, Tomography, X-Ray Computed, business, Nuclear medicine, Point-of-care ultrasonography (POCUS)
Abstract

Background In the past months, several lung ultrasonography (LUS) protocols have been proposed, mainly on previously validated schemes independent of coronavirus disease 2019 (COVID-19). Objectives The main purpose of this study was to determine the impact and accuracy of different LUS protocols proposed in COVID-19. Methods Patients were evaluated with a standard sequence of LUS scans in 72 intercostal spaces along 14 anatomic lines in the chest. A scoring system of LUS findings was reported and then analyzed separately according to each proposed LUS protocol zones. This score was then correlated to a validated Pulmonary Inflammation Index (PII) on chest Computed Tomography (CT). Results Thirty-two patients were enrolled. The most frequent pattern was ground-glass opacities in the chest X-ray (53.1%), chest CT (59.1%) and subpleural or lobar consolidations (40.8%) in the posteroinferior areas (p < 0.001) on LUS. The Interclass Correlation Coefficient (ICC) was significantly correlated with almost every protocol analyzed except the 8-zone (p = 0.119) and the 10-zone protocol that only included one posterior point (p = 0.052). The highest ICC was obtained with a 12-zone protocol (ICC 0.500; p = 0.027) and decreased as more points were included. Conclusions In conclusion, our study results suggest that performing an ultrasound protocol with 12-zone scanning, including the superior and inferior areas of the anterior, lateral and posterior regions of the chest was consistent with higher ICC and higher degree of concordance with CT. We emphasize the need of a more standardization technique to further implement and develop this imaging modality in COVID-19 post-print 1035 KB

Published
2021

14. [Ultrasound-guided venous cannulation by inexperienced residents: comparison of 2 methods]

Author

Tomás, Villén Villegas and Ángela, Trueba Vicente

Abstract

To compare venous catheter insertion by inexperienced medical residents using a traditional ultrasound guidance method and ultrasound with a probe to guide the needle.Experimental study in which a group of 32 medical resident volunteers attempted to established a venous access in a simulator using ultrasound guidance with and without addition of a bracket device to guide insertion of the needle. We recorded the number of attempts and the time required to insert the catheter.Catheterization took an average of 16.22 seconds with the device and 29.93 without it (P = .045). Fewer attempts were required with the needle guidance device (mean, 1.09 attempts vs 1.88 with the conventional method; P = .001). The subjective assessment of 59.4% of the residents was that the procedure with the guide bracket was easier; however, 25% felt the conventional method was, easier and 15.6% reported a similar level of difficulty with both methods.In this group of residents without prior experience of venous cannulation or ultrasound guidance, significantly fewer attempts were required and the catheter was correctly inserted sooner when the needle guide was used. Furthermore, most residents felt insertion was easier when the guide was used.Comparar los resultados de la canalización venosa con guía ecográfica tanto en el método tradicional como con la ayuda de un sistema de guía para la aguja en una población de operadores sin experiencia.Estudio experimental realizado en una población de 32 médicos residentes voluntarios que realizaron intentos respectivos de canalización convencional y con sistema de guía de la aguja sobre un simulador de acceso venoso central. Se midieron el número de intentos y el tiempo en realizar la canalización.El sistema de aguja-guía obtuvo un tiempo medio hasta canalización de 16,22 segundos frente a los 29,93 de la técnica convencional (p = 0,045). El número de intentos del sistema aguja-guía fue de 1,09 frente a los 1,88 del sistema convencional (p = 0,001). Subjetivamente el 59,4% de los operadores manifestaron que la técnica de aguja-guía es más fácil de utilizar, frente al 25% de los que opinaban que era más fácil la técnica tradicional y el 15,6% que opinaban que presentaban una dificultad similar.En esta muestra de operadores sin experiencia previa en la utilización de la ecografía ni de la guía ecográfica, el uso de un sistema de guía para la aguja disminuye significativamente el número de intentos y el tiempo que se tarda en conseguir la canalización del vaso. Además, la percepción subjetiva del operador indica que es una técnica más fácil de realizar.

Published
2017

15. Abstracts from the 13th WINFOCUS World Congress on Ultrasound in Emergency & Critical Care

Author

Frances S. Shofer, Julio Pontet, Leonardo Vera, Mario Cancela, N. Monserrat Navarro, Anthony J. Dean, Mohd Anas Mohd Nor, Luciana Mendes, Zulaili Asri, Ivana Fatica, Ahmad Rasdan Ismail, Rodrigo Martella, Cecilia Ciarlo, V. Ricardo Carvajal, Renan Detoffol Bragança, María Fernanda Barbui, Jimena Areco, Cecilia Gómez Ravetti, Thiago Bragança Lana Silveira Ataíde, Mirjana Brvar, Azma Haryaty Ahmad, Igor Sviridenko, Carolina Méndez, Nicolas Ahualli, Gabriela Da Campo, Mauro Constantini, Elizabeth Krebs, Lidia Miranda Barreto Mourão, Pedro Andrade Mello, N. Díaz García, Ana Luisa Silveira Vieira, Luiz Ernani Meira Junior, Bernardo Costa Lemos, Matías Brizuela, José Muniz Pazeli Junior, Pablo Rodriguez Luna, Bret P. Nelson, Miguel Montorfano, Shaik Farid Abdull Wahab, Daniel Terra, Diego Méndez, Anna Cecília Castro e Abreu, Alberto Casazza, Pablo Bravo Figueroa, Kristine Robinson, Stefano Geniere Nigra, Jonatan Bornia, Rohayu Othman, Giacomo Veronese, Siul Salisbury, Jackson Andrade, Fiorella Cavalleri, Marinna Marques Rodrigues Saliba, Lucas Vieira Chagas, Victor Ortiz, Adi Osman, Stephen Alerhand, Norainal Atiqah Mohamed, J. Rodrigo Adasme, Cameron Baston, Gustavo Vassia, Ruben Daniel Algieri, Carmela Graci, Jacob Ian Shapiro, A. Trueba Vicente, Mariana Lía Brizuela, Vito Sgromo, Nathália Costa Almeida Pinho, L. W. Alba Muñoz, Marcos Aqcuavita, Wilma Chan, Carolina Brofman, Ana Soca, Nova Panebianco, Ana Rodríguez, Mohammad Zikri Ahmad, Rosimary Souza Vicentino, Tomas Villen Villegas, Sylvia Noveri, P. Oscar Bravo, P. Gallego Rodríguez, Mohmad Aswad Mohmad Amin, Felipe Serrano, C. Guillén Astete, Mohd Boniami Yazid, Tjaša Banović, Mohd Hashairi Fauzi, Stephanie J. Doniger, José Alejandro Bujedo, Christian Yic, Michael Halperin, Maurício Dutra Costa, Khairul Izwan Hashim, Gregor Prosen, Vandack Nobre, Marina Marazzi, Javier Buchanan, Emilia Mohtar Razali, N. García Montes, Maria Soledad Ferrante, Adam Nevel, Barbara Furman, Giovanni Ricevuti, Erich A. Lidstone, Cristian Flores, Silvina Fabretto, Adeline Marie Gnanasegaran Xavier, Paula Denardi, Juan Pablo Fernandez, Seri Rohayu Neow Hanzah, Humberto Insfran, Maria Thereza Meira Araujo, Pablo Rodriguez, Christy Moore, and Nayara Nobre Basso

Subjects
lcsh:Medical physics. Medical radiology. Nuclear medicine, Radiological and Ultrasound Technology, medicine.diagnostic_test, business.industry, lcsh:R895-920, Ultrasound, medicine, Interventional radiology, Medical emergency, medicine.disease, business, Meeting Abstracts
Published
2017

16. Abstracts from the 13th WINFOCUS World Congress on Ultrasound in Emergency & Critical Care

Author

Alerhand, Stephen, primary, Nevel, Adam, additional, Nelson, Bret, additional, Halperin, Michael, additional, Serrano, Felipe, additional, Prosen, Gregor, additional, Banović, Tjaša, additional, Doniger, Stephanie J., additional, Brvar, Mirjana, additional, Furman, Barbara, additional, Gallego Rodríguez, P., additional, Villén Villegas, Tomas, additional, Trueba Vicente, A., additional, Alba Muñoz, L. W., additional, Guillén Astete, C., additional, Díaz García, N., additional, García Montes, N., additional, Areco, Jimena, additional, Terra, Daniel, additional, Cavalleri, Fiorella, additional, Salisbury, Siul, additional, Rodríguez, Ana, additional, Fauzi, Mohd Hashairi, additional, Asri, Zulaili, additional, Mohamed, Norainal Atiqah, additional, Amin, Mohmad Aswad Mohmad, additional, Xavier, Adeline Marie Gnanasegaran, additional, Nor, Mohd Anas Mohd, additional, Hashim, Khairul Izwan, additional, Wahab, Shaik Farid Abdull, additional, Yazid, Mohd Boniami, additional, Ahmad, Mohammad Zikri, additional, Ismail, Ahmad Rasdan, additional, Othman, Rohayu, additional, Constantini, Mauro, additional, Pontet, Julio, additional, Sviridenko, Igor, additional, Rodriguez, Pablo, additional, Yic, Christian, additional, Méndez, Diego, additional, Noveri, Sylvia, additional, Soca, Ana, additional, Cancela, Mario, additional, Rodriguez Luna, Pablo, additional, Martella, Rodrigo, additional, Fabretto, Silvina, additional, Lidstone, Erich, additional, Shapiro, Jacob, additional, Robinson, Kristine, additional, Gómez Ravetti, Cecilia, additional, Silveira Ataide, Thiago Bragança Lana, additional, Miranda Barreto Mourão, Lidia, additional, Almeida Pinho, Nathália Costa, additional, Vieira Chagas, Lucas, additional, Detoffol Bragança, Renan, additional, Nobre, Vandack, additional, Meira Araujo, Maria Thereza, additional, Ernani Meira Junior, Luiz, additional, Mendes, Luciana, additional, Andrade, Jackson, additional, Nobre Basso, Nayara, additional, Castro e Abreu, Anna Cecília, additional, Muniz Pazeli Junior, José, additional, Silveira Vieira, Ana Luisa, additional, Costa Lemos, Bernardo, additional, Marques Rodrigues Saliba, Marinna, additional, Dutra Costa, Maurício, additional, Andrade Mello, Pedro, additional, Souza Vicentino, Rosimary, additional, Fernandez, Juan Pablo, additional, Ahualli, Nicolas, additional, Insfran, Humberto, additional, Fatica, Ivana, additional, Bornia, Jonatan, additional, Denardi, Paula, additional, Algieri, Ruben Daniel, additional, Flores, Cristian, additional, Ferrante, Maria Soledad, additional, Vassia, Gustavo, additional, Brofman, Carolina, additional, Ortiz, Victor, additional, Krebs, Elizabeth, additional, Shofer, Frances, additional, Baston, Cameron, additional, Moore, Christy, additional, Chan, Wilma, additional, Dean, Anthony J., additional, Panebianco, Nova, additional, Geniere Nigra, Stefano, additional, Graci, Carmela, additional, Sgromo, Vito, additional, Casazza, Alberto, additional, Veronese, Giacomo, additional, Montorfano, Miguel, additional, Ricevuti, Giovanni, additional, Marazzi, Marina, additional, Barbui, María Fernanda, additional, Da Campo, Gabriela, additional, Ciarlo, Cecilia, additional, Vera, Leonardo, additional, Brizuela, Matías, additional, Brizuela, Mariana Lía, additional, Aqcuavita, Marcos, additional, Buchanan, Javier, additional, Bujedo, José Alejandro, additional, Figueroa, Pablo Bravo, additional, Ricardo Carvajal, V., additional, Oscar Bravo, P., additional, Monserrat Navarro, N., additional, Rodrigo Adasme, J., additional, Méndez, Carolina, additional, Osman, Adi, additional, Ahmad, Azma Haryaty, additional, Neow Hanzah, Seri Rohayu, additional, and Razali, Emilia Mohtar, additional

Published
2017
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17. TUBERCULOUS PERITONITIS: AN EMERGING UNCOMMON EXTRAPULMONARY INFECTION CAUSED BY MYCOBACTERIUM TUBERCULOSIS

Author

J.L. Calleja Lopez, A. Ruedas Lopez, F. Perez Corral, M. Mialdea, E. Rodríguez Fernández, M.A. Moreno Cobo, A Trueba Vicente, M. Egea Simon, and P. Guisado Vasco

Subjects
Mycobacterium tuberculosis, biology, business.industry, Tuberculous peritonitis, Internal Medicine, Medicine, business, biology.organism_classification, Microbiology
Published
2008
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