Sonographic measurement of the thymus in infants

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Sonographic measurement of the thymus in infants. / Hasselbalch, H.; Nielsen, M. B.; Jeppesen, D.; Pedersen, J. F.; Karkov, J.

In: European Radiology, Vol. 6, No. 5, 1996, p. 700-703.

Research output: Contribution to journalJournal articleResearchpeer-review

Harvard

Hasselbalch, H, Nielsen, MB, Jeppesen, D, Pedersen, JF & Karkov, J 1996, 'Sonographic measurement of the thymus in infants', European Radiology, vol. 6, no. 5, pp. 700-703. https://doi.org/10.1007/BF00187675

APA

Hasselbalch, H., Nielsen, M. B., Jeppesen, D., Pedersen, J. F., & Karkov, J. (1996). Sonographic measurement of the thymus in infants. European Radiology, 6(5), 700-703. https://doi.org/10.1007/BF00187675

Vancouver

Hasselbalch H, Nielsen MB, Jeppesen D, Pedersen JF, Karkov J. Sonographic measurement of the thymus in infants. European Radiology. 1996;6(5):700-703. https://doi.org/10.1007/BF00187675

Author

Hasselbalch, H. ; Nielsen, M. B. ; Jeppesen, D. ; Pedersen, J. F. ; Karkov, J. / Sonographic measurement of the thymus in infants. In: European Radiology. 1996 ; Vol. 6, No. 5. pp. 700-703.

Bibtex

@article{8a005e34537a44ae903ccb34348b5c6e,
title = "Sonographic measurement of the thymus in infants",
abstract = "A new method of measuring the size of the thymus in infants less than 1 year of age is presented. The width of the thymus was measured in a transverse image while the area of the largest lobe was assessed in a longitudinal image. The thymic index was then defined as the product of these two values. Intra-and interobserver variation analysis were performed in 23 infants. Each infant was scanned alternately by both of two radiologists, and later the same day the measurements were repeated. The mean differences between the first and second measurements (intraobserver variation) were -0.25 (2 SD 7.56) and -1.13 (2 SD 10.80), respectively, for the two observers. The mean difference between the first measurements of the two observers (interobserver variation) was 1.47 (2 SD 9.39). In a postmortem study of 12 infants the thymic index measured by sonography showed an acceptable correlation to the actual volume (c = 0.80) and weight (c = 0.87) of the thymus. In conclusion, our sonographic estimate of the volume of the thymus, the thymic index, in infants under 8 months of age seems to be easy, reliable and reproducible.",
keywords = "Infant, Thymus gland, Ultrasonography",
author = "H. Hasselbalch and Nielsen, {M. B.} and D. Jeppesen and Pedersen, {J. F.} and J. Karkov",
year = "1996",
doi = "10.1007/BF00187675",
language = "English",
volume = "6",
pages = "700--703",
journal = "European Radiology",
issn = "0938-7994",
publisher = "Springer",
number = "5",

}

RIS

TY - JOUR

T1 - Sonographic measurement of the thymus in infants

AU - Hasselbalch, H.

AU - Nielsen, M. B.

AU - Jeppesen, D.

AU - Pedersen, J. F.

AU - Karkov, J.

PY - 1996

Y1 - 1996

N2 - A new method of measuring the size of the thymus in infants less than 1 year of age is presented. The width of the thymus was measured in a transverse image while the area of the largest lobe was assessed in a longitudinal image. The thymic index was then defined as the product of these two values. Intra-and interobserver variation analysis were performed in 23 infants. Each infant was scanned alternately by both of two radiologists, and later the same day the measurements were repeated. The mean differences between the first and second measurements (intraobserver variation) were -0.25 (2 SD 7.56) and -1.13 (2 SD 10.80), respectively, for the two observers. The mean difference between the first measurements of the two observers (interobserver variation) was 1.47 (2 SD 9.39). In a postmortem study of 12 infants the thymic index measured by sonography showed an acceptable correlation to the actual volume (c = 0.80) and weight (c = 0.87) of the thymus. In conclusion, our sonographic estimate of the volume of the thymus, the thymic index, in infants under 8 months of age seems to be easy, reliable and reproducible.

AB - A new method of measuring the size of the thymus in infants less than 1 year of age is presented. The width of the thymus was measured in a transverse image while the area of the largest lobe was assessed in a longitudinal image. The thymic index was then defined as the product of these two values. Intra-and interobserver variation analysis were performed in 23 infants. Each infant was scanned alternately by both of two radiologists, and later the same day the measurements were repeated. The mean differences between the first and second measurements (intraobserver variation) were -0.25 (2 SD 7.56) and -1.13 (2 SD 10.80), respectively, for the two observers. The mean difference between the first measurements of the two observers (interobserver variation) was 1.47 (2 SD 9.39). In a postmortem study of 12 infants the thymic index measured by sonography showed an acceptable correlation to the actual volume (c = 0.80) and weight (c = 0.87) of the thymus. In conclusion, our sonographic estimate of the volume of the thymus, the thymic index, in infants under 8 months of age seems to be easy, reliable and reproducible.

KW - Infant

KW - Thymus gland

KW - Ultrasonography

UR - http://www.scopus.com/inward/record.url?scp=0030345376&partnerID=8YFLogxK

U2 - 10.1007/BF00187675

DO - 10.1007/BF00187675

M3 - Journal article

C2 - 8934137

AN - SCOPUS:0030345376

VL - 6

SP - 700

EP - 703

JO - European Radiology

JF - European Radiology

SN - 0938-7994

IS - 5

ER -

ID: 331495847