The Haller index, created in 1987 by J. Alex Haller, S. S. Kramer, and S. A. Lietman, is a mathematical relationship that exists in a human chest section observed with a CT scan. It is defined as the ratio of the transverse diameter (the horizontal distance of the inside of the ribcage) and the anteroposterior diameter (the shortest distance between the vertebrae and sternum). where: HI is the Haller Indexdistance 1 is the distance of the inside ribcage (at the level of maximum deformity or at the lower third of the sternum)distance 2 is the distance between the sternal notch and vertebrae.
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- Hallerindex (nl)
- Índice de Haller (pt)
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| - O índice de Haller, criado em 1987 pelo Dr. Haller, Dr. Kramer e Dr. Lietman, é uma relação matemática que existe em uma seção do tórax humano observada com uma tomografia computadorizada. Um índice normal de Haller deve ser de cerca de 2,5. As deformidades da parede torácica, como a pectus excavatum, podem fazer com que o esterno se inverta, aumentando assim o índice, que pode chegar a 3,25 ou mesmo a 5,5ref>Swoveland, Barbara (2001). «Haller ranges». AORN Journal. É definida como a relação entre o diâmetro transversal (a distância horizontal do interior da caixa torácica) e o diâmetro ântero-posterior (a menor distância entre as vértebras e o esterno). (pt)
- The Haller index, created in 1987 by J. Alex Haller, S. S. Kramer, and S. A. Lietman, is a mathematical relationship that exists in a human chest section observed with a CT scan. It is defined as the ratio of the transverse diameter (the horizontal distance of the inside of the ribcage) and the anteroposterior diameter (the shortest distance between the vertebrae and sternum). where: HI is the Haller Indexdistance 1 is the distance of the inside ribcage (at the level of maximum deformity or at the lower third of the sternum)distance 2 is the distance between the sternal notch and vertebrae. (en)
- De hallerindex, ontwikkeld door Dr. Haller, Dr. Kramer, en Dr. Lietman in 1987, is een getalsmatige verhoudingsmaat voor de menselijke borst. Per definitie is de hallerindex de verhouding van de transversale diameter (breedte van de ribbenkast) en de kortste afstand tussen de wervelkolom en het borstbeen. Deze afstanden kunnen worden gemeten door middel van een CT-scan.De hallerindex is de verhouding: Daarin is de inwendige breedte van de ribbenkast de afstand tussen het borstbeen en de wervelkolom. (nl)
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| - The Haller index, created in 1987 by J. Alex Haller, S. S. Kramer, and S. A. Lietman, is a mathematical relationship that exists in a human chest section observed with a CT scan. It is defined as the ratio of the transverse diameter (the horizontal distance of the inside of the ribcage) and the anteroposterior diameter (the shortest distance between the vertebrae and sternum). where: HI is the Haller Indexdistance 1 is the distance of the inside ribcage (at the level of maximum deformity or at the lower third of the sternum)distance 2 is the distance between the sternal notch and vertebrae. More recent studies show that simple chest x-rays are just as effective as CT scans for calculating the Haller index and recommend replacing CT scans with CXR to reduce radiation exposure in all but gross deformities. A normal Haller index should be about 2.5. Chest wall deformities such as pectus excavatum can cause the sternum to invert, thus increasing the index. In severe asymmetric cases, where the sternum dips below the level of the vertebra, the index can be a negative value. (en)
- De hallerindex, ontwikkeld door Dr. Haller, Dr. Kramer, en Dr. Lietman in 1987, is een getalsmatige verhoudingsmaat voor de menselijke borst. Per definitie is de hallerindex de verhouding van de transversale diameter (breedte van de ribbenkast) en de kortste afstand tussen de wervelkolom en het borstbeen. Deze afstanden kunnen worden gemeten door middel van een CT-scan.De hallerindex is de verhouding: Daarin is de inwendige breedte van de ribbenkast de afstand tussen het borstbeen en de wervelkolom. Een normale waarde van de hallerindex is gelegen rond 2,5. Afwijkende borstkasontwikkelingen zoals pectus excavatum, waarbij het borstbeen meer naar binnen zit, kan een hallerindex bereiken van 3,25 of zelfs 5,5 (nl)
- O índice de Haller, criado em 1987 pelo Dr. Haller, Dr. Kramer e Dr. Lietman, é uma relação matemática que existe em uma seção do tórax humano observada com uma tomografia computadorizada. Um índice normal de Haller deve ser de cerca de 2,5. As deformidades da parede torácica, como a pectus excavatum, podem fazer com que o esterno se inverta, aumentando assim o índice, que pode chegar a 3,25 ou mesmo a 5,5ref>Swoveland, Barbara (2001). «Haller ranges». AORN Journal. É definida como a relação entre o diâmetro transversal (a distância horizontal do interior da caixa torácica) e o diâmetro ântero-posterior (a menor distância entre as vértebras e o esterno). (pt)
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