CT parameters of infected intraabdominal collections and their bacteriological correlation
Computed tomography (CT) is a widely used tool in detection of intraabdominal collections, and useful for determining the need of drainage.The aim of the present study is to evaluate CT images and their ability to differentiate the presence of infection in intraabdominal collections, correlating ima...
| Autores principales: | , , , , , , , |
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| Formato: | Artículo revista |
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Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología
2022
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/med/article/view/39090 |
| Aporte de: |
| id |
I10-R327-article-39090 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-327 |
| container_title_str |
Revista de la Facultad de Ciencias Médicas de Córdoba |
| format |
Artículo revista |
| topic |
tomography abdominal abscess Diagnostic Imaging tomografía absceso abdominal infecciones intraabdominales diagnóstico por imagen . |
| spellingShingle |
tomography abdominal abscess Diagnostic Imaging tomografía absceso abdominal infecciones intraabdominales diagnóstico por imagen . Bertona, B Jubete, M Kellerman, L Balderrama, MB Balderrama, F Giuliani, F Giordano , E Castrillón , ME CT parameters of infected intraabdominal collections and their bacteriological correlation |
| topic_facet |
tomography abdominal abscess Diagnostic Imaging tomografía absceso abdominal infecciones intraabdominales diagnóstico por imagen . |
| author |
Bertona, B Jubete, M Kellerman, L Balderrama, MB Balderrama, F Giuliani, F Giordano , E Castrillón , ME |
| author_facet |
Bertona, B Jubete, M Kellerman, L Balderrama, MB Balderrama, F Giuliani, F Giordano , E Castrillón , ME |
| author_sort |
Bertona, B |
| title |
CT parameters of infected intraabdominal collections and their bacteriological correlation |
| title_short |
CT parameters of infected intraabdominal collections and their bacteriological correlation |
| title_full |
CT parameters of infected intraabdominal collections and their bacteriological correlation |
| title_fullStr |
CT parameters of infected intraabdominal collections and their bacteriological correlation |
| title_full_unstemmed |
CT parameters of infected intraabdominal collections and their bacteriological correlation |
| title_sort |
ct parameters of infected intraabdominal collections and their bacteriological correlation |
| description |
Computed tomography (CT) is a widely used tool in detection of intraabdominal collections, and useful for determining the need of drainage.The aim of the present study is to evaluate CT images and their ability to differentiate the presence of infection in intraabdominal collections, correlating imagenological findings with posterior microbiological outcomes.
Correlational, transverse and retrospective study, of 35 patients with intraabdominal collection documented by CT, whose content was cultured after percutaneous drainage. Five imagenological parameters were evaluated: attenuation, gas entrapment, wall thickness, wall enhancement and fat stranding. Data was described using absolutes and relatives frequencies; mean and standard deviation. Sensibility, specificity, positive predictive value, negative predictive value and area under the curve of each tomographical parameter were determined.
77% of cultures were positive. There was no statistically significant differences between both groups regarding sex and age, with 56% of patients masculins and an age of 66,9 ± 10,9 years in patients with positive results, whereas 50% of those with negative culture were men, and their mean age was 69,6 ± 6,6 years. Among all parameters analyzed, gas entrapment was present in 60% of positive cultures and none of the negative ones (p=0,0031); with high specificity and positive predictive value (PPV) of 100% and a sensibility of 59,2%. All other parameters showed no statistically significant differences.
The results match with other studies in demonstrating that gas entrapment is a very specific sign with a high PPV of intraabdominal collection. However, it was expected to find differences in the rest of parameters evaluated. This could be explained by the low number of patients with negative cultures.
The decision of whether to drain a fluid collection should be based on imaging and clinical parameters. CT performance in intraabdominal collections needs further evaluations. |
| publisher |
Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología |
| publishDate |
2022 |
| url |
https://revistas.unc.edu.ar/index.php/med/article/view/39090 |
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I10-R327-article-390902024-04-15T16:14:45Z CT parameters of infected intraabdominal collections and their bacteriological correlation Parámetros tomográficos de colecciones intraabdominales infectadas y su correlación bacteriológica . Bertona, B Jubete, M Kellerman, L Balderrama, MB Balderrama, F Giuliani, F Giordano , E Castrillón , ME tomography abdominal abscess Diagnostic Imaging tomografía absceso abdominal infecciones intraabdominales diagnóstico por imagen . Computed tomography (CT) is a widely used tool in detection of intraabdominal collections, and useful for determining the need of drainage.The aim of the present study is to evaluate CT images and their ability to differentiate the presence of infection in intraabdominal collections, correlating imagenological findings with posterior microbiological outcomes. Correlational, transverse and retrospective study, of 35 patients with intraabdominal collection documented by CT, whose content was cultured after percutaneous drainage. Five imagenological parameters were evaluated: attenuation, gas entrapment, wall thickness, wall enhancement and fat stranding. Data was described using absolutes and relatives frequencies; mean and standard deviation. Sensibility, specificity, positive predictive value, negative predictive value and area under the curve of each tomographical parameter were determined. 77% of cultures were positive. There was no statistically significant differences between both groups regarding sex and age, with 56% of patients masculins and an age of 66,9 ± 10,9 years in patients with positive results, whereas 50% of those with negative culture were men, and their mean age was 69,6 ± 6,6 years. Among all parameters analyzed, gas entrapment was present in 60% of positive cultures and none of the negative ones (p=0,0031); with high specificity and positive predictive value (PPV) of 100% and a sensibility of 59,2%. All other parameters showed no statistically significant differences. The results match with other studies in demonstrating that gas entrapment is a very specific sign with a high PPV of intraabdominal collection. However, it was expected to find differences in the rest of parameters evaluated. This could be explained by the low number of patients with negative cultures. The decision of whether to drain a fluid collection should be based on imaging and clinical parameters. CT performance in intraabdominal collections needs further evaluations. La tomografía computarizada (TC) es una herramienta muy utilizada en la detección de colecciones intraabdominales y para la toma de decisión de realizar drenajes. El objetivo del presente estudio es evaluar imágenes en TC y su capacidad de diferenciar la presencia o no de infección en colecciones intraabdominales, correlacionando los hallazgos imagenológicos con resultados microbiológicos posteriores. Estudio correlacional, transversal retrospectivo, de 35 pacientes con colección intraabdominal documentada por TC y cuyo contenido fue cultivado tras drenaje percutáneo. Se evaluaron cinco parámetros imagenológicos: atenuación, atrapamiento gaseoso, realce y grosor de pared, y aumento de la densidad de grasa circundante. Se describieron los datos mediante frecuencias absolutas y relativas; y media y desvío estándar. Se determinaron sensibilidad, especificidad, valor predictivo positivo, valor predictivo negativo y área bajo la curva de los parámetros tomográficos en la detección de colección infectada. El 77% de los cultivos resultaron positivos. No hubo diferencias estadísticamente significativas entre ambos grupos respecto al sexo y a la edad, con 56% de pacientes masculinos y edad de 66,9 ± 10,9 años para pacientes con resultados positivos y 50% de hombres y 69,6 ± 6,6 años para aquellos con resultados negativos (p=0,7817 y p=0,7529 respectivamente). De los parámetros analizados, el atrapamiento gaseoso estuvo presente el 60% de los cultivos positivos y no se observó en los negativos (p=0,0031); con especificidad y valor predictivo positivo (VPP) del 100%; y sensibilidad del 59,2%. El resto de los parámetros no presentó diferencias significativas. Los resultados coinciden con otros trabajos al demostrar que el atrapamiento gaseoso es un signo muy específico y con alto VPP de infección de la colección intraabdominal. Sin embargo, también se esperaba encontrar diferencias en los otros parámetros evaluados. Esto pudo deberse a un bajo número de pacientes con cultivos negativos. La decisión de realizar intervencionismo debe apoyarse tanto en la imagen tomográfica como en parámetros clínicos y de laboratorio. Se debe continuar evaluando el rendimiento de la tomografía en colecciones abdominales infectadas para lograr un mayor rendimiento diagnóstico. . Universidad Nacional Córdoba. Facultad de Ciencias Médicas. Secretaria de Ciencia y Tecnología 2022-10-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion texto texto . https://revistas.unc.edu.ar/index.php/med/article/view/39090 Revista de la Facultad de Ciencias Médicas de Córdoba.; Vol. 79 No. Suplemento JIC XXIII (2022): Suplemento JIC XXIII Revista de la Facultad de Ciencias Médicas de Córdoba; Vol. 79 Núm. Suplemento JIC XXIII (2022): Suplemento JIC XXIII Revista da Faculdade de Ciências Médicas de Córdoba; v. 79 n. Suplemento JIC XXIII (2022): Suplemento JIC XXIII 1853-0605 0014-6722 http://creativecommons.org/licenses/by-nc/4.0 |