Pub Date : 2021-09-29DOI: 10.24875/rchrad.m21000001
Lorena C. Castro-Solari, Javier Brahm, Leyla Nazal, D. Simian, Andrea Jimnez, R. Segovia, Andres OBrien, G. Silva
{"title":"Concordancia entre elastograf�a hep�tica por ARFI e �ndices serol�gicos en la evaluaci�n no invasiva de fibrosis hep�tica en adultos con hepatopat�a cr�nica","authors":"Lorena C. Castro-Solari, Javier Brahm, Leyla Nazal, D. Simian, Andrea Jimnez, R. Segovia, Andres OBrien, G. Silva","doi":"10.24875/rchrad.m21000001","DOIUrl":"https://doi.org/10.24875/rchrad.m21000001","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44097002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-03DOI: 10.4067/S0717-93082021000200076
P. Matrai, Sofía Magdalena
La disfuncion del piso pelvico representa un amplio espectro de trastornos funcionales complejos, los que pueden afectar a uno o mas, de los tres compartimentos que componen la pelvis. Estos desordenes son mas frecuentes en mujeres posmenopausicas, por lo que su prevalencia va en aumento, en concordancia con el envejecimiento de la poblacion. Este conjunto de trastornos, suelen determinar un importante deterioro en la calidad de vida, principalmente debido a las manifestaciones clinicas que pueden presentar, tales como dolor pelvico, incontinencia urinaria y/o fecal, constipacion o prolapso de organos pelvicos. El diagnostico de estas patologias se logra de forma mas apropiada mediante la evaluacion por imagenes; cuando el diagnostico realiza solo en base a la historia clinica y el examen fisico, hay una tasa de error significativa y, en consecuencia, pueden ocurrir intervenciones fallidas o innecesarias. Por lo anterior, la Defecografia por Resonancia Magnetica (D-RM) juega un rol fundamental, especialmente previo a intervenciones quirurgicas, ya que es una modalidad no invasiva que aporta informacion multiplanar y dinamica, con alta resolucion temporo-espacial y que permite valorar de manera precisa la anatomia y alteraciones de los compartimentos que conforman el piso pelvico, sin riesgo de irradiacion para el paciente. Los objetivos de este articulo son describir el protocolo tecnico a utilizar en la D-RM ilustrar a traves de imagenes representativas la anatomia normal de la pelvis femenina junto con sus puntos, lineas, angulos y medidas mas importantes; y ejemplificar los hallazgos imagenologicos de los desordenes mas frecuentes que afectan al piso pelvico.
{"title":"DEFECOGRAFÍA POR RESONANCIA MAGNÉTICA Y SU UTILIDAD EN EL ESTUDIO DE DISFUNCIÓN DEL PISO PÉLVICO","authors":"P. Matrai, Sofía Magdalena","doi":"10.4067/S0717-93082021000200076","DOIUrl":"https://doi.org/10.4067/S0717-93082021000200076","url":null,"abstract":"La disfuncion del piso pelvico representa un amplio espectro de trastornos funcionales complejos, los que pueden afectar a uno o mas, de los tres compartimentos que componen la pelvis. Estos desordenes son mas frecuentes en mujeres posmenopausicas, por lo que su prevalencia va en aumento, en concordancia con el envejecimiento de la poblacion. Este conjunto de trastornos, suelen determinar un importante deterioro en la calidad de vida, principalmente debido a las manifestaciones clinicas que pueden presentar, tales como dolor pelvico, incontinencia urinaria y/o fecal, constipacion o prolapso de organos pelvicos. El diagnostico de estas patologias se logra de forma mas apropiada mediante la evaluacion por imagenes; cuando el diagnostico realiza solo en base a la historia clinica y el examen fisico, hay una tasa de error significativa y, en consecuencia, pueden ocurrir intervenciones fallidas o innecesarias. Por lo anterior, la Defecografia por Resonancia Magnetica (D-RM) juega un rol fundamental, especialmente previo a intervenciones quirurgicas, ya que es una modalidad no invasiva que aporta informacion multiplanar y dinamica, con alta resolucion temporo-espacial y que permite valorar de manera precisa la anatomia y alteraciones de los compartimentos que conforman el piso pelvico, sin riesgo de irradiacion para el paciente. Los objetivos de este articulo son describir el protocolo tecnico a utilizar en la D-RM ilustrar a traves de imagenes representativas la anatomia normal de la pelvis femenina junto con sus puntos, lineas, angulos y medidas mas importantes; y ejemplificar los hallazgos imagenologicos de los desordenes mas frecuentes que afectan al piso pelvico.","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48033880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/S0717-93082021000200056
P. Norambuena, A. Cocio, M. Casas
{"title":"Ciclo de charlas de ultrasonido, una experiencia “online” del pandémico año 2020","authors":"P. Norambuena, A. Cocio, M. Casas","doi":"10.4067/S0717-93082021000200056","DOIUrl":"https://doi.org/10.4067/S0717-93082021000200056","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44106155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/s0717-93082021000200058
Gonzalo Araya R., X. Stecher G, Valeria Schonstedt G., C. Silva F, R. Araya R., César Salinas G.
Morphometric Analysis Program (MAP): Description and application in the detection of focal cortical dysplasias in patients with refractory epilepsy. de gran y dedicación del número de en que se una La de su varía entre el 20 a 70%. Morphometic Analysis Program (MAP), es un programa de de la por resonancia es la en la de corticales focales (DFC). Este la y distribución de sustancia gris y sustancia blanca de un paciente con una base de datos de cerebros normales. MAP entrega, como resultado, 3 imágenes que corresponden a mapas estadísticos volumétricos denominados mapa junction, extension y thickness. Este artículo da a conocer el funcionamiento de MAP en sus distintas etapas así como su aplicación práctica, a través de algunos casos. Abstract: Focal cortical dysplasias are a common cause of refractory epilepsy. The findings on magnetic resonance imaging can be subtle, requiring optimal quality examination as well as extensive experience and dedica-tion from the neuroradiologist. Even under the best conditions, there are a considerable number of cases in which an injury cannot be identified. The sensitivity of its detection varies between 20 and 70%. The Morphometric Analysis Program (MAP), is a post-processing program of the magnetic resonance image whose objective is to increase the sensitivity in the detection of focal cortical dysplasia (CFD). This program works by comparing the shape, thickness and distribution of gray matter and white matter of a patient with a database of normal brains. As a result, MAP delivers 3 images that correspond to statistical volumetric maps called the union, extension and thickness map. This article discloses the operation of MAP in its different stages as well as its practical application, through some cases.
形态计量分析程序（MAP）：描述和应用于检测难治性癫痫患者的局灶性皮质发育异常。在La de su varía地区，这一比例为20%至70%。形态分析程序（MAP）是一个共振和聚焦皮层（DFC）程序。在正常大脑数据的基础上，灰色和白色可持续性的分布是不稳定的。MAP entrega，como resultado，3个基因对应于一个mapas estadísticos volumeétricos denominatos mapa junction，extension y thickness。Este artículo da a conocer el functionamiento de MAP en sus distincitas etapas asícomo su applicación práctica，a través de algunos casos。摘要：局灶性皮质发育异常是难治性癫痫的常见病因。磁共振成像的发现可能很微妙，需要最佳质量的检查以及神经放射科医生的丰富经验和专业知识。即使在最好的条件下，也有相当多的情况下无法确定受伤情况。其检测灵敏度在20%到70%之间变化。形态计量分析程序（MAP）是磁共振图像的后处理程序，其目的是提高检测局灶性皮质发育不良（CFD）的灵敏度。该程序的工作原理是将患者的灰质和白质的形状、厚度和分布与正常大脑的数据库进行比较。因此，MAP提供了3个图像，这些图像对应于称为并集、扩展和厚度图的统计体积图。本文通过案例介绍了MAP在不同阶段的运作及其实际应用。
{"title":"Morphometric Analysis Program (MAP): Descripción y aplicación en la detección de displasias corticales focales en pacientes con epilepsia refractaria","authors":"Gonzalo Araya R., X. Stecher G, Valeria Schonstedt G., C. Silva F, R. Araya R., César Salinas G.","doi":"10.4067/s0717-93082021000200058","DOIUrl":"https://doi.org/10.4067/s0717-93082021000200058","url":null,"abstract":"Morphometric Analysis Program (MAP): Description and application in the detection of focal cortical dysplasias in patients with refractory epilepsy. de gran y dedicación del número de en que se una La de su varía entre el 20 a 70%. Morphometic Analysis Program (MAP), es un programa de de la por resonancia es la en la de corticales focales (DFC). Este la y distribución de sustancia gris y sustancia blanca de un paciente con una base de datos de cerebros normales. MAP entrega, como resultado, 3 imágenes que corresponden a mapas estadísticos volumétricos denominados mapa junction, extension y thickness. Este artículo da a conocer el funcionamiento de MAP en sus distintas etapas así como su aplicación práctica, a través de algunos casos. Abstract: Focal cortical dysplasias are a common cause of refractory epilepsy. The findings on magnetic resonance imaging can be subtle, requiring optimal quality examination as well as extensive experience and dedica-tion from the neuroradiologist. Even under the best conditions, there are a considerable number of cases in which an injury cannot be identified. The sensitivity of its detection varies between 20 and 70%. The Morphometric Analysis Program (MAP), is a post-processing program of the magnetic resonance image whose objective is to increase the sensitivity in the detection of focal cortical dysplasia (CFD). This program works by comparing the shape, thickness and distribution of gray matter and white matter of a patient with a database of normal brains. As a result, MAP delivers 3 images that correspond to statistical volumetric maps called the union, extension and thickness map. This article discloses the operation of MAP in its different stages as well as its practical application, through some cases.","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46836418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/S0717-93082021000200088
J. Giannini, L. Franco, Z. C. Montalba, P. López, A. Astudillo
{"title":"Neurografía por resonancia magnética: Aspectos técnicos y aplicaciones clínicas","authors":"J. Giannini, L. Franco, Z. C. Montalba, P. López, A. Astudillo","doi":"10.4067/S0717-93082021000200088","DOIUrl":"https://doi.org/10.4067/S0717-93082021000200088","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43618813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/S0717-93082021000200109
L. Flórez, G. Prada, G. V. García
{"title":"Invaginación anterógrada del remanente gástrico en asa biliopancreática posterior a Bypass gástrico","authors":"L. Flórez, G. Prada, G. V. García","doi":"10.4067/S0717-93082021000200109","DOIUrl":"https://doi.org/10.4067/S0717-93082021000200109","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43779919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/S0717-93082021000200066
I. Venegas, O. Valdés, M. S. Palacios, F. Soto, F. G. Schiappacasse, A. Vidal, V. Ortiz, U. Varela, S. Maldonado
COVID-19 es una enfermedad viral que fue declarada pandemia por la Organizacion Mundial de la Salud (OMS) durante este ano 2020. Que ha causado un gran impacto en el area medica, y especificamente en la radiologia. El rol del radiologo es fundamental para identificar de forma correcta las manifestaciones de esta enfermedad, principalmente los hallazgos pulmonares en imagenes. Sin embargo, durante el ultimo tiempo se han descrito hallazgos extra-pulmonares en pacientes infectados, entre las que incluyen manifestaciones cardiacas, toracicas y derivadas del estado pro trombotico producido por el virus. El objetivo de este trabajo es presentar de forma retrospectiva hallazgos imagenologicos extrapulmonares en pacientes con COVID-19 de nuestras dos instituciones. Ademas se realizo una revision de la literatura sobre las manifestaciones extra-pulmonares y complicaciones reportadas de la enfermedad. Esperamos aportar informacion para un adecuado y optimo manejo de estos pacientes. UNEXPECTED FINDINGS AND COMPLICATIONS IN PATIENTS WITH COVID-19 PNEUMONIA: LOCAL EXPERIENCE AND LITERATURE REVIEW. COVID-19 is a viral disease produced by SARS-CoV-2 that was declared a global pandemic by the World Health Organization (WHO) on March 2020. The pandemic has caused a great impact in several medical disciplines, including radiology. Radiologists have a fundamental role in identifying characteristic imaging findings of the COVID-19 disease. The studies regarding extra pulmonary findings of COVID-19 are relatively new. These findings include cardiac, thoracic and abdominal manifestations as a result of the pro-thrombotic state produced by the virus. Unexpected extrapulmonary imaging findings of COVID-19 patients from two different institutions are presented. In addition, we conducted a literature review of extra pulmonary manifestations and complications of this disease. The aim of this study is to provide information for an early recognition and optimal management of these complications.
2019冠状病毒病(COVID-19)是世界卫生组织(世卫组织)在2020年宣布的一种病毒性疾病。这对医学领域，特别是放射学产生了巨大的影响。放射科医生的作用是至关重要的，以正确识别这种疾病的表现，特别是肺成像的表现。然而，在过去的一段时间里，已经描述了感染患者的肺外表现，包括心脏、胸部和由病毒产生的血栓形成状态引起的表现。这项工作的目的是提出回顾性地发现imagenologicos extrapulmonares COVID-19患者我们两个机构。本研究的目的是评估肺外表现和相关并发症的文献综述。我们希望为这些患者的适当和最佳管理提供信息。19 -19肺炎患者的意外发现和并发症:当地经验和文献综述。2019冠状病毒病(COVID-19)是一种由SARS-CoV-2引起的病毒性疾病，世界卫生组织(世卫组织)于2020年3月宣布为全球大流行。= =地理= =根据美国人口普查，该地区的总面积为，其中土地和(1.7%)水。放射科医生在确定COVID-19疾病的特征成像结果方面发挥着关键作用。关于COVID-19肺外发现的研究相对较新的。这些发现包括由病毒产生的前血小板状态引起的心脏、胸部和腹部症状。介绍了来自两家不同机构的COVID-19患者的意外肺外成像结果。此外，我们还对该病的肺外表现和并发症进行了文献回顾。The aim of this study is提供资料for an early recognition and connor management of这些必须。
{"title":"Hallazgos y complicaciones extrapulmonares en pacientes con neumopatía Covid-19: Experiencia local y revisión de la literatura","authors":"I. Venegas, O. Valdés, M. S. Palacios, F. Soto, F. G. Schiappacasse, A. Vidal, V. Ortiz, U. Varela, S. Maldonado","doi":"10.4067/S0717-93082021000200066","DOIUrl":"https://doi.org/10.4067/S0717-93082021000200066","url":null,"abstract":"COVID-19 es una enfermedad viral que fue declarada pandemia por la Organizacion Mundial de la Salud (OMS) durante este ano 2020. Que ha causado un gran impacto en el area medica, y especificamente en la radiologia. El rol del radiologo es fundamental para identificar de forma correcta las manifestaciones de esta enfermedad, principalmente los hallazgos pulmonares en imagenes. Sin embargo, durante el ultimo tiempo se han descrito hallazgos extra-pulmonares en pacientes infectados, entre las que incluyen manifestaciones cardiacas, toracicas y derivadas del estado pro trombotico producido por el virus. El objetivo de este trabajo es presentar de forma retrospectiva hallazgos imagenologicos extrapulmonares en pacientes con COVID-19 de nuestras dos instituciones. Ademas se realizo una revision de la literatura sobre las manifestaciones extra-pulmonares y complicaciones reportadas de la enfermedad. Esperamos aportar informacion para un adecuado y optimo manejo de estos pacientes. UNEXPECTED FINDINGS AND COMPLICATIONS IN PATIENTS WITH COVID-19 PNEUMONIA: LOCAL EXPERIENCE AND LITERATURE REVIEW. COVID-19 is a viral disease produced by SARS-CoV-2 that was declared a global pandemic by the World Health Organization (WHO) on March 2020. The pandemic has caused a great impact in several medical disciplines, including radiology. Radiologists have a fundamental role in identifying characteristic imaging findings of the COVID-19 disease. The studies regarding extra pulmonary findings of COVID-19 are relatively new. These findings include cardiac, thoracic and abdominal manifestations as a result of the pro-thrombotic state produced by the virus. Unexpected extrapulmonary imaging findings of COVID-19 patients from two different institutions are presented. In addition, we conducted a literature review of extra pulmonary manifestations and complications of this disease. The aim of this study is to provide information for an early recognition and optimal management of these complications.","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46501442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/s0717-93082021000200104
Marco Antonio Díaz E., Novar López C., Fabiola García S., Abril Maciel F., Jair Díaz E.
{"title":"Variz pulmonar: A propósito de un caso y revisión de la literatura","authors":"Marco Antonio Díaz E., Novar López C., Fabiola García S., Abril Maciel F., Jair Díaz E.","doi":"10.4067/s0717-93082021000200104","DOIUrl":"https://doi.org/10.4067/s0717-93082021000200104","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43964577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.4067/s0717-93082021000200055
Sebastián Bravo Grau, Héctor Henríquez
{"title":"Primer curso de inteligencia artificial en radiología","authors":"Sebastián Bravo Grau, Héctor Henríquez","doi":"10.4067/s0717-93082021000200055","DOIUrl":"https://doi.org/10.4067/s0717-93082021000200055","url":null,"abstract":"","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48129151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-04-01DOI: 10.4067/S0717-93082021000100027
F. LuisCanales, O. BeatrizPérez, K. JoséAdeGrazia, G. LorenaLópez, G. GonzaloMiranda, P. PatriciaOrellana, G. AlejandraTorres, Z. AlvaroSalas, F. RenéNúñez, R. MarceloLópez
Computed tomography perfusion (CTP) is a technique that allows rapid qualitative and quantitative evaluation of cerebral perfusion by generating color maps that represent the behavior of the cerebral microcirculation. Its main indication has been the study of acute cerebral infarction in order to determine ischemic penumbra susceptible to reperfusion therapy. However, there is evidence of its usefulness in other situations such as: hypo - hyperperfusion states, tumor grading in glial neoplasms, head trauma and others. The advanta-ges of CTP are its availability, speed and the possibility of performing it in conjunction with angiographic studies. However, it has disadvantages derived from the use of ionizing radiation and iodinated contrast agent. We present different clinical entities that have been studied in our institution with CTP, where the technique has provided relevant information for diagnosis and treatment. We propose a summary table for the interpretation of the different maps and the quantitative values, with cut points that define normality,
{"title":"Perfusión cerebral por tomografía computada: Utilidad más allá del infarto cerebral agudo","authors":"F. LuisCanales, O. BeatrizPérez, K. JoséAdeGrazia, G. LorenaLópez, G. GonzaloMiranda, P. PatriciaOrellana, G. AlejandraTorres, Z. AlvaroSalas, F. RenéNúñez, R. MarceloLópez","doi":"10.4067/S0717-93082021000100027","DOIUrl":"https://doi.org/10.4067/S0717-93082021000100027","url":null,"abstract":"Computed tomography perfusion (CTP) is a technique that allows rapid qualitative and quantitative evaluation of cerebral perfusion by generating color maps that represent the behavior of the cerebral microcirculation. Its main indication has been the study of acute cerebral infarction in order to determine ischemic penumbra susceptible to reperfusion therapy. However, there is evidence of its usefulness in other situations such as: hypo - hyperperfusion states, tumor grading in glial neoplasms, head trauma and others. The advanta-ges of CTP are its availability, speed and the possibility of performing it in conjunction with angiographic studies. However, it has disadvantages derived from the use of ionizing radiation and iodinated contrast agent. We present different clinical entities that have been studied in our institution with CTP, where the technique has provided relevant information for diagnosis and treatment. We propose a summary table for the interpretation of the different maps and the quantitative values, with cut points that define normality,","PeriodicalId":35339,"journal":{"name":"Revista Chilena de Radiologia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45307301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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