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Journal of Ultrasound in Medicine, Vol 6, Issue 3 139-143, Copyright © 1987 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Ultrasonic "double track" sign in hypertrophic pyloric stenosis

H. L. Cohen, S. Schechter, A. L. Mestel, D. H. Eaton and J. O. Haller

Ultrasound has been used in the diagnosis of hypertrophic pyloric stenosis since the first reports of its use with contact B mode scanners. Real-time imaging has allowed measurements of pyloric diameter, length, and muscle wall thickness. Wall thickness measurements taken with the pylorus in longitudinal (elongated) view improve diagnostic accuracy. Fluid aided real-time examination of 10 cases showed the ultrasound equivalent of the "double track" sign. This finding is the result of pyloric fluid compressed into smaller tracks as it is impinged upon circumferentially by the thickened circular muscle. This sign, previously seen in barium studies, although nonspecific, may prove to be a sensitive diagnostic criterion.


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H. L. Cohen, S. L. Blumer, and W. B. Zucconi
The Sonographic Double-Track Sign: Not Pathognomonic for Hypertrophic Pyloric Stenosis; Can Be Seen in Pylorospasm
J. Ultrasound Med., May 1, 2004; 23(5): 641 - 646.
[Abstract] [Full Text] [PDF]

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 Am. J. Roentgenol.Home page
M. Hernanz-Schulman, L. H. Lowe, J. Johnson, W. W. Neblett, D. B. Polk, R. Perez Jr., L. E. Scheker, S. M. Stein, R. M. Heller, and R. Cywes
In Vivo Visualization of Pyloric Mucosal Hypertrophy in Infants with Hypertrophic Pyloric Stenosis: Is There an Etiologic Role?
Am. J. Roentgenol., October 1, 2001; 177(4): 843 - 848.
[Abstract] [Full Text] [PDF]


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Copyright © 1987 by the American Institute of Ultrasound in Medicine.