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Estudio descriptivo de la relación entre la medición cuantitativa en radiografías simples de la porción cervical de la columna vertebral e histopatología de la médula espinal cervical en equinos afectados por mielopatía estenótica vertebral cervical
(Universidad de Chile, 2009)
diagnóstico histopatológico de lesión compresiva en ese sitio en particular.
Por otro lado, en sólo 4 de los 30 casos, la radiología simple predijo exactamente los sitios de compresión en la médula espinal; y en 5 casos, no existieron coincidencias entre los...
The breakthrough in understanding diseases that affect horses and the large number of published studies recently, which certainly facilitate the evidence based clinical approach for daily practice, allowing more accurate diagnosis of diseases such as Cervical Vertebral Stenotic Myelopathy (CVSM). The most important presentation of this disease is that of a narrow or stenotic spinal canal due to abnormal vertebral development, which causes compression of the spinal cord. The disorder seems to be a multifactorial disease, although the underlying cause is not fully understood. Today, it is thought that the problem is a developmental disorder (osteocartilaginous abnormal development, osteochondrosis) that starts very early in the life of patients, perhaps in the same uterus. This study was conducted using medical records pertaining to horses admitted at Rood and Riddle Equine Hospital, Lexington, Kentucky, USA, during the period 2002-2007. Thirty horses (23 males, 4 females, 1 castrated male and 2 not determined) were sampled in order to determine coincidences between the measurement of intravertebral sagittal ratios (ISR) and the respective histopathologic specimens. Plain radiography (by the method of intravertebral sagittal ratios) was able to determine the cord compression due to CVSM in one or more sites in 93.3% of cases (28 out of 30 horses). Of the 120 joints evaluated separately, 86 corresponding to 71.7%, were found with intravertebral sagittal ratios below reference values. Of these, 48.8% (42 joints) had coincidences with the histopathologic diagnosis of compressive lesion in that particular site. Furthermore, only in 4 out of 30 cases, simple radiology accurately predicted sites of spinal cord compression and in 5 cases, there were no coincidences between the sites involved and identified by one or another technique. In the case of plain radiography showed 2 peaks at the level of joints C3-C4 and C5-C6, whereas in the case of histopathology there is only one peak at the level of joint C3-C4. After performing a Spearman correlation for nonparametric data, joints C3-C4, C5-C6 and C6-C7 showed a low correlation between the diagnosis by the method of the ISR and histopathological, approaching the null association in the case of joint C4-C5. Plain radiographs despite of being useful, give us insufficient information, it does not determine either the number or location of the spinal cord compressions and the contribution of soft tissues. These factors are particularly important if surgical decompression is contemplated....
The breakthrough in understanding diseases that affect horses and the large number of published studies recently, which certainly facilitate the evidence based clinical approach for daily practice, allowing more accurate diagnosis of diseases such as Cervical Vertebral Stenotic Myelopathy (CVSM). The most important presentation of this disease is that of a narrow or stenotic spinal canal due to abnormal vertebral development, which causes compression of the spinal cord. The disorder seems to be a multifactorial disease, although the underlying cause is not fully understood. Today, it is thought that the problem is a developmental disorder (osteocartilaginous abnormal development, osteochondrosis) that starts very early in the life of patients, perhaps in the same uterus. This study was conducted using medical records pertaining to horses admitted at Rood and Riddle Equine Hospital, Lexington, Kentucky, USA, during the period 2002-2007. Thirty horses (23 males, 4 females, 1 castrated male and 2 not determined) were sampled in order to determine coincidences between the measurement of intravertebral sagittal ratios (ISR) and the respective histopathologic specimens. Plain radiography (by the method of intravertebral sagittal ratios) was able to determine the cord compression due to CVSM in one or more sites in 93.3% of cases (28 out of 30 horses). Of the 120 joints evaluated separately, 86 corresponding to 71.7%, were found with intravertebral sagittal ratios below reference values. Of these, 48.8% (42 joints) had coincidences with the histopathologic diagnosis of compressive lesion in that particular site. Furthermore, only in 4 out of 30 cases, simple radiology accurately predicted sites of spinal cord compression and in 5 cases, there were no coincidences between the sites involved and identified by one or another technique. In the case of plain radiography showed 2 peaks at the level of joints C3-C4 and C5-C6, whereas in the case of histopathology there is only one peak at the level of joint C3-C4. After performing a Spearman correlation for nonparametric data, joints C3-C4, C5-C6 and C6-C7 showed a low correlation between the diagnosis by the method of the ISR and histopathological, approaching the null association in the case of joint C4-C5. Plain radiographs despite of being useful, give us insufficient information, it does not determine either the number or location of the spinal cord compressions and the contribution of soft tissues. These factors are particularly important if surgical decompression is contemplated....
The apple-peel syndrome in midgut volvulus El signo de la cáscara de manzana en vólvulo de intestino medio
(2011)
Revista Chilena de Radiología. Vol. 17 Nº 2, 2011; 90-92.
90
Dr. Michael Hirsch y cols.
El signo de la cáscara de manzana en vólvulo de
intestino medio
Drs. Michael Hirsch S(1), Claudio Cortés A(2).
1. Residente de...
Radiología, Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. 2. Radiólogo, Profesor Asociado Facultad de Medicina, Universidad de Chile. Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. Aspecto...
Radiología, Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. 2. Radiólogo, Profesor Asociado Facultad de Medicina, Universidad de Chile. Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. Aspecto...
Signos radiológicos: Esófago feline
(2012)
Revista Chilena de Radiología. Vol. 18 Nº 1, año 2012; 36-38.
36
Dr. Gonzalo Pérez y cols.
Aspecto imaginológico
El signo del esófago felino corresponde a la visua-
lización, en una esofagografía de doble contraste, de...
Zerega R(1), Claudio Cortés A(2). 1. Residente de Radiología, Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. 2. Radiólogo, Profesor Asociado Facultad de Medicina, Universidad de Chile. Centro de Imagenología, Hospital...
Zerega R(1), Claudio Cortés A(2). 1. Residente de Radiología, Centro de Imagenología, Hospital Clínico Universidad de Chile. Santiago, Chile. 2. Radiólogo, Profesor Asociado Facultad de Medicina, Universidad de Chile. Centro de Imagenología, Hospital...
Solitary lung nodule: Is volumetric doubling time assessment really useful for differentiating a malignant from a benign lesion? Nódulo pulmonar solitario: ¿es la medición del tiempo de duplicación volumétrica realmente útil para diferenciar lesiones benignas de malignas?
(Sociedad Chilena de Radiologia, 2020)
Prevalencia de variantes anatómicas naso-sinusales: Importancia en el informe radiológico y en la cirugía endoscópica funcional
(Sociedad Chilena de Radiología, 2014)
Revista Chilena de Radiología. Vol. 20 Nº 1, año 2014; 5-12.
5
CABEZA Y CUELLO
Prevalencia de variantes anatómicas naso-sinusales:
Importancia en el informe radiológico y en la cirugía
endoscópica funcional
Dres. José...
A. de Grazia K(1), Gonzalo Miranda G(2), Katherine Walker J(3), Sebastián Aguirre V(4). 1. Médico Residente de Radiología, Centro de Imagenología Hospital Clínico Universidad de Chile. Santiago - Chile. 2. Médico Neurorradiólogo, Centro de...
A. de Grazia K(1), Gonzalo Miranda G(2), Katherine Walker J(3), Sebastián Aguirre V(4). 1. Médico Residente de Radiología, Centro de Imagenología Hospital Clínico Universidad de Chile. Santiago - Chile. 2. Médico Neurorradiólogo, Centro de...