Imagenología
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Item Abdomen Agudo: importancia de los rayos X en el Dx. del abdomen agudo en pacientes del Hospital del IESS. Cuenca 1989-1990(1992-11-11) Urdiales Jiménez, Juan; Pazos Manzano, Presley Eduardo; Campoverde Arévalo, NicolásItem Alteraciones cromosómicas en ratones provocadas por radiaciones gama de cobalto 60(1985-11-11) Parra, Nancy; Ochoa, María Elena; Viscaino, Patricio; Barros, Patricio; Morales, JaimeItem Angiografía carotídea en el Hospital Vicente Corral Moscoso de la ciudad de Cuenca mayo 1988-diciembre 1989(1991-11-11) Brito Peralta, Nancy; Cevallos Plaza, Marien; Quizhpe Macas, Mariana; Pazos Manzano, Presley EduardoItem Artrografía de rodilla. Hospital del IESS Cuenca 1985-1987(1990-11-11) Ramírez Jaramillo, Carlos; Parra Orellana, Patricio; Morales, Vanessa; Pazos Manzano, Presley EduardoItem Cálculo de la barrera de transmisión primaria en el bunker del acelerador lineal para haces de energías de fotones sin filtro aplanador en el Instituto del cáncer SOLCA núcleo de Cuenca enero 2024 - junio 2024(Universidad de Cuenca, 2025-02-27) Bonito Fuentes, María de los Ángeles; Méndez Calle, Jessica Carolina; Erazo Caluqui, Fabián GonzaloBackground: Medical linear accelerators can generate flattening filter (FF) and non-flattening filter (FFF) photon beams. Current consensus indicates that FFF beams have lower primary barrier transmission than FF beams. Objective: To determine the primary transmission barrier, B, in the bunker of the linear accelerator H192678 from the Instituto del Cáncer Solca Núcleo de Cuenca, for high- energy photon beams with flattening filter of 06MV and 10 MVand also for high-energy beams without flattening filter of 06 FFF and 10 FFF. Methodology: A descriptive study of primary transmission barriers was conducted by measuring the instantaneous air kerma rate, 𝐾 ̇ 𝑎 . Three barriers were analyzed: upper floor bordering the warehouse (BB), exterior side wall (BE) and dressing room side wall (BV). Results: For 06 MV, the transmissions −7 −8 (BE), and 5.242×10 −9 −8 −8 (BE), and .001×10 −9 −6 (BB), 3.735×10 (BB), 2.305×10 (BB), 7.222×10 −7 −7 (BE), and 5.196×10 (BV). For 06 FFF, the transmissions (BV). For 10 MV, the transmissions (BV). For 10 FFF, the transmissions were 1.506×10 were 9.938×10 were 1.487×10 were 9.929×10 −7 (BB), 5.503×10 −7 −7 (BE), and 3.540×10 (BV). The 𝐵𝐹𝐹𝐹 /𝐵𝐹𝐹 ratios were less than 1 for all barriers and energies except for the BV barrier at 06 MV. The percentage differences between the estimated 𝑇𝑉𝐿𝐹𝐹𝐹 and 𝑇𝑉𝐿𝑒 (NCRP No. 151) were less than 6.3%. Conclusion: It was concluded that the FFF beam modality requires less shieldingItem Calibración dosimétrica de haces de electrones de baja energía de uso clínico con cámara de ionización cilíndrica utilizando el protocolo de dosimetría TRS398 modificado, en el Instituto del Cáncer SOLCA Núcleo de Cuenca, período Agosto 2022 - Diciembre 2022(Universidad de Cuenca, 2023-04-12) Herrán López, Vanesa Milena; Delgado Sangolquí, Paula Dennise; Erazo Caluquí, Fabián GonzaloThe main protocol for physical dosimetry used to characterize medical linear accelerators is that of the International Atomic Energy Agency (IAEA) [1]. This protocol presents the use of plane-parallel ionization chambers for electron beams featuring R50 ≤ 4.0 g /cm2. Muir’s studies [3] suggest a modified formalism for electron beam reference dosimetry of the IAEA procedure. For this, updated correlation factors are used and calculated through Monte Carlo methods. To determine low-energy electron beam reference dosimetry in a linear accelerator with a cylindrical ionization chamber according to Muir’s modified TRS398 dosimetry protocol [3]. This is a descriptive – prospective study. Therefore, data collection was based on information obtained using Mephysto software and devices to measure pressure, temperature, and a clinical dosimetry system to measure charges in an electron-beam linear accelerator. After reference dosimetry was determined using the TRS398 protocol, Muir’s absolute dosimetry is carried out. The differences between the two are less than 1.2%. It is possible to use Muir’s electron-beam absolute dosimetry in an accelerator since the percentage difference is less than 1.2% in regard to the standard system.Item Características de imágenes ecográficas de la patología renal, en pacientes que acuden al departamento de ecografía del Hospital "Vicente Corral Moscoso" y Hispotal Regional del IESS. Durante el periodo de agosto de 1997 a enero de 1998(1998-11-11) Alvarez T., Sandra; Hidalgo Q., Karina; Jara L., Maribel; Tápia, NicanorItem Características de las imágenes ecográficas en la patología renal, en pacientes que acuden al departamento de imagenología del Hospital José Carrasco Arteaga(2003) Bernal, Lorena; Chalco, Lourdes; Mogrovejo, Carmen; Pazos Manzano, Presley EduardoItem Características feto-maternas del segundo y tercer trimestre de embarazo en estudios ecográficos obstétricos del H.V.C.M. de Cuenca octubre 1988 a mayo de 1989(1990-11-11) Sánchez Salinas, Luis Alonso; España Ballesteros, Elvis Edwin; Durán Chuchuca, Alfonso; Pazos Manzano, Presley EduardoItem Características feto-maternas en el primer trimestre de gestación en pacientes que asisten al departamento de ultrasonido del H.V.C.M. Cuenca julio adiciembre de 1990(1991-11-11) Frias Loaiza, José Edgar; Gómez Pérez, Adela Esther; Pazos Manzano, Presley EduardoItem Características y frecuencia de estudios radiográficos Y tomográficos en pacientes politraumatizados que ingresaron con seguro obligatorio de accidentes de tránsito en el área de imagenología del Hospital "José Carrasco Arteaga" Cantón Cuenca. Periodo: enero-diciembre del 2013(2015-11-11) Ortiz Malo, Juan Pablo; Quezada Carvallo, Julio Eduardo; Tapia Barzallo, Luis Fernando; Tigsi Ganzhi, Luis ManuelIntroduction: Worldwide, many people are injured, they left with serious sequelae or died as a consequence of traffic accidents. Background: Approximately, in 2002 1.18 million people because of clashes in the street died, which means an average of 3,242 deaths per day worldwide. The figure represents 2.1% of global deaths, making the injuries caused by traffic in the eleventh leading cause of death worldwide. Currently 1.2 million people are killed each year and nearly 50 million injured as a result of a traffic accident. Objective: Characteristics and frequency of radiographic and tomographic studies in trauma patients admitted with Obligatory Insurance of Traffic Accidents in the imaging area of the hospital "José Carrasco Arteaga" canton Cuenca. Period: January-December 2013. Methods and Materials: The procedure for the collection of the information was obtained from an existing database in the Imaging Department José Carrasco Arteaga hospital. For the collection of information a form, based on medical records consulted in 2013 was filled. Results: The results obtained showed a higher frequency in polytrauma patients 21-40 years of age reached 58.2%, as was also the most frequently in men with a percentage of 70.8% and was more often urban origin with 81.8% in the period to year. 77.0% of patients admitted with SOAT radiographic studies were performed which are the most frequent in connection with tomographic studies were 30.5%. The characteristic pathological study had more often were limb fractures with 12.2%, mediantes evidenced radiographic studies and the most pathological scan frequency was 5.2% TEC.Item Caracterización de tipos de fracturas en miembro inferior de pacientes politraumatizados evaluados por radiología digital en el área de imagenología del Hospital Vicente Corral Moscoso. Enero-junio 2021(Universidad de Cuenca, 2023-01-06) Tenemea Guillén, Pedro Xavier; Astudillo Reyes, Adriana EstefaníaBackground: Multiple trauma patients attend the emergency and imaging area every day, so it is necessary to maintain updated data on the frequency in which these events occur and the severity of the patients. Traffic accidents are the leading cause of trauma according to the World Health Organization (WHO): Every year about 1.3 million people die on the roads worldwide, and between 20-50 million suffer non-fatal injuries. Traffic accidents are one of the main causes of death in all age groups, particularly in people between 5 and 29 years of age. (1) General objective: To characterize the kinds of fractures in the lower limb of multiple trauma patients evaluated in the Imaging area of the “Vicente Corral Moscoso” Hospital, diagnosed by digital radiological imaging during the period January-June 2021. Methodology: A retrospective and cross-sectional descriptive method was carried out. The information was collected from trauma patients who were examined by a simple digital radiography in the period January-June 2021 at the "Vicente Corral Moscoso" Hospital. Results: The investigation included a population of 205 patients. The prevalence of fractures in the lower limb was 76.1% in male and 23.9% in female patients. The prevalent age group is young adults between 21- 30 years with 33.7%. The bone with the highest frequency of injury is the Tibia with 39.2%, depending on the exposure the predominant fracture is the displaced one without exposure with 61.2%, the most frequent fracture line is the oblique with 31.9%, and the prevalent side of the damage is to the left with 49.8%. Conclusion: The percentages in the variables of sex, age, affected bone and laterality of the condition are similar research data in other regions, in the fracture according to the exposure and according to the line, the values oscillate a lot or don’t exist, the simple digital radiography it’s the method with the highest specificity and low cost for the evaluation of fractures.Item Clasificación de pantallas reforzadoras en centros radiológicos de Cuenca, Azogues y Cañar en 1990(1991-11-11) Alvarez G., Rogelio; Gutiérrez V., Ramiro; Pazos Manzano, Presley Eduardo; Barros Chica, Arturo JoséItem Colecistografía oral Hospital I.E.S.S. Cuenca(1984-11-11) Albán Rubio, Kleber; Bermeo I., Eduardo; Pazos Manzano, Presley EduardoItem Comparación de la dosis de radiación y cantidad de medio de contraste en acceso radial vs femoral en pacientes sometidos a cateterismo cardíaco en el Hospital José Carrasco Arteaga. Cuenca, enero 2012-diciembre 2013(2015-11-11) Espinoza Zhigue, Merlin Elena; Játiva Campoverde, Miguel Santiago; Muñoz Cajamarca, Alejandra Natali; Aguilar Riera, Sandra Elizabeth; Aguilar Riera, Sandra ElizabethThe main objective of this research is to compare the radiation dose and the amount of contrast used between the radial and femoral routes in patients undergoing cardiac catheterization in the hemodynamic department of José Carrasco Arteaga Hospital of Cuenca, in the period from January 2012-December 2013 162 cases with an average age of 63.87 years with the largest age group in patients aged 61 and over with 61.1% were studied; the most frequent in males were 69.8%. 2 types of procedures, as in the case of coronary angiography in 63.6% of cases were performed; Stent Angiography in 12.3% of cases; secondly in 24.1% The radial access approach was the most used and presented advantages over the femoral in the following variables: average procedure time (19.62 min versus 30.86 min); average radiation exposure time (7.31 min versus 10.53 minutes); average radiation dose (mGy 388.98 versus 514.53 mGy) and doses of contrast medium (104 ml versus 119.55 ml); in all these cases mean differences were statistically significant according to the t value calculated everything with 95% confidence.Item Densitometría ósea en el diágnostico de la osteopenia y osteoporosis en pacientes que acudieron al Centro de Planificación Familiar APROFE en el período enero de 2010 a diciembre de 2011(2013-11-11) Dávila Cordero, Francisco Santiago; Tigsi Ganzhi, Luis Manuel; Cañar Lojano, Hugo AníbalThe main objective of this research was to determine the prevalence of Osteopenia and Osteoporosis by bone densitometry of Lumbar Spine and Femur in patients attending the Family Planning Centre (APROFE) of the Cuenca city in the period January 2010 to Dec (...)Item Determinación de espolón calcáneo en pacientes comprendidos entre 20-60 años, mediante Rayos "X". En el Hospital José Carrasco Arteaga; periodo febrero - mayo 2006. Azuay - Cuenca(2007-11-11) Parra Orellana, Patricio Segundo; Méndez Méndez, Víctor Gustavo; Ulloa Cuzco, Leonardo Porfirio; Pazos Manzano, Presley EduardoItem Diagnóstico de las enfermedades más frecuentes mediante la técnica de intervencionismo radiológico en pacientes del Hospital José Carrasco Arteaga. Junio-noviembre 2012(2013-11-11) Bernal Muñoz, Inés Lorena; Tocachi Morocho, Janneth Angélica; Tigsi Ganzhi, Luis Manuel; Cañar Lojano, Hugo AníbalThe main objective of this research was to determine the incidence of the most common diseases using the technique of Interventional Radiology in patients presenting to the Department of Imaging José Carrasco Arteaga Hospital during the period from June to (...)Item Diseñar un manual de procedimientos en tomografía computarizada en exámenes contrastados, para el servicio de imagenología del Hospital José Carrasco Arteaga, Cuenca. 2014-2015(2015-11-11) Sarmiento Orellana, Juan Carlos; Iguasnia Palomino, Pablo Guillermo; Escobar Villa, Ana Mireya; Aguilar Riera, Sandra Elizabeth; Auquilla Díaz, Nancy EulaliaIn the present study we review the different protocols used in CT contrast media. The overall objective of this research was to standardize protocols, designing a procedures manual in CT examinations Contrasted to the Imaging Service of Hospital José Carrasco Arteaga, Cuenca, allowing the procedures used in the different studies are feasible, accurate and useful within diagnosis of pathologies. The method used in this study was descriptive - prospective. The universe and the sample was represented throughout the POE; the sample is representative and random. Data for the survey applying a previously validated interview and professionals with objective questions to be answered individually verbatim survey was used as an instrument. The following results of the research were: With respect to gender of the respondents, 55% corresponds to POE female and 45% male to POE. The age group most frequently was that of 21-30 years represent 45% and the lowest rate was 51-60 years with a rate of 10%. On the level of education, medical radiology technologists occupy only 5%, while imaging graduates are 95%. In the test at the POE, 60% have a regular knowledge and 40% have a good knowledge on the subject, none of the respondents reaches very good or excellent level.Item Dosis de efectividad de radiación utilizada en estudios de cráneo, cuello, tórax y abdomen con un tomógrafo multicorte de 64 canales en el Hospital José Carrasco Arteaga Cuenca, septiembre del 2014-febrero del 2015(2015) Montenegro Córdova, Andrea Cristina; Toalón Idrovo, Henry Paúl; Ortiz Sagba, Nelson Ramiro; Freire Argudo, Marco VinicioComputed tomography allowing TCM has great advances in noninvasive diagnosis of various diseases. At present most of the applied radiation arises from the use of CT, followed by nuclear medicine and fluoroscopy. The aim of our research was to determine the effective dose in studies of skull, neck, thorax and abdomen with a 64-channel Multislice Tomography in Arteaga's José Carrasco Hospital in Cuenca Cato, during the period from September to February 2014 -2015. 3129 cases with a mean age of 48.58 years with the largest age group in patients 16 years and older with 90.3% were studied; the most common female sex was 50.5%. 4 types of tomographic methods were studied, being the most frequent with 68.1% skull and neck less frequent with 1%. The maximum effective dose used was 21,98mSv in the group of 16 years or more and the minimum 0,38mSv in studies of the skull of the same group. The effective dose in all CT without contrast in the group aged 16 and over did not exceed baseline levels. The value of the effective dose in all CT with contrast in the group aged 16 years and over exceeded baseline levels. Because no reference levels effective dose for pediatric groups found, the DLP was studied found higher levels in the first age group. The results obtained in this research will be disseminated in the Journal of the Faculty of Medicine of the University of Cuenca and study serve as a basis for future comparisons.