Comparison of Diagnostic Accuracy for the Low-Type Imperforate Anus Between Prone Cross-Table Radiography and Sonography

Takahiro Hosokawa, Mayumi Hosokawa, Yutaka Tanami, Shinya Hattori, Yumiko Sato, Yujiro Tanaka, Hiroshi Kawashima, Eiji Oguma, Yoshitake Yamada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

OBJECTIVES: To compare the diagnostic accuracy for the low-type imperforate anus between prone cross-table radiography and sonography.

METHODS: We included 20 neonates with imperforate anus: 13 with a surgically proven low type and 7 with an intermediate or high type. The distance between the distal rectal pouch and the perineum (pouch-perineum distance) was measured by both sonography and prone cross-table radiography. A previously established pouch-perineum distance of 10 mm was used as the cutoff for diagnosis of a low-type imperforate anus. The fistula location was also determined with sonography. We then compared the diagnostic accuracy of the imaging methods for a low-type imperforate anus using the cutoff value of the pouch-perineum distance alone and both the cutoff value of the pouch-perineum distance and fistula location. The McNemar test was used for statistical analysis.

RESULTS: With the use of only the pouch-perineum distance, the diagnostic accuracy for the low-type imperforate anus based on sonographic measurements was comparable with the accuracy achieved by prone cross-table radiographic measurements (60.0% [12 of 20] versus 45.0% [9 of 20]; P = .625). With the use of the pouch-perineum distance and fistula location, the diagnostic accuracy of sonography was significantly better than the accuracy of prone cross-table radiography (90.0% [18 of 20] versus 45% [9 of 20]; P = .012).

CONCLUSIONS: The diagnostic accuracy of sonography for the low-type imperforate anus based on both the pouch-perineum distance and fistula location is better than that of prone cross-table radiography. If the pouch-perineum distance on prone cross-table radiography is greater than 10 mm, a sonographic examination to determine the fistula location could be recommended.

Original languageEnglish
Pages (from-to)1679-1686
Number of pages8
JournalJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine
Volume36
Issue number8
DOIs
Publication statusPublished - 2017 Aug 1

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Imperforate Anus
Perineum
Radiography
Ultrasonography
Fistula
Diagnostic Imaging

Keywords

  • anorectal malformation
  • imperforate anus
  • invertogram
  • pediatric ultrasound
  • prone cross-table radiography
  • sonography

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

Cite this

Comparison of Diagnostic Accuracy for the Low-Type Imperforate Anus Between Prone Cross-Table Radiography and Sonography. / Hosokawa, Takahiro; Hosokawa, Mayumi; Tanami, Yutaka; Hattori, Shinya; Sato, Yumiko; Tanaka, Yujiro; Kawashima, Hiroshi; Oguma, Eiji; Yamada, Yoshitake.

In: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, Vol. 36, No. 8, 01.08.2017, p. 1679-1686.

Research output: Contribution to journalArticle

Hosokawa, Takahiro ; Hosokawa, Mayumi ; Tanami, Yutaka ; Hattori, Shinya ; Sato, Yumiko ; Tanaka, Yujiro ; Kawashima, Hiroshi ; Oguma, Eiji ; Yamada, Yoshitake. / Comparison of Diagnostic Accuracy for the Low-Type Imperforate Anus Between Prone Cross-Table Radiography and Sonography. In: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 2017 ; Vol. 36, No. 8. pp. 1679-1686.
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author = "Takahiro Hosokawa and Mayumi Hosokawa and Yutaka Tanami and Shinya Hattori and Yumiko Sato and Yujiro Tanaka and Hiroshi Kawashima and Eiji Oguma and Yoshitake Yamada",
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T1 - Comparison of Diagnostic Accuracy for the Low-Type Imperforate Anus Between Prone Cross-Table Radiography and Sonography

AU - Hosokawa, Takahiro

AU - Hosokawa, Mayumi

AU - Tanami, Yutaka

AU - Hattori, Shinya

AU - Sato, Yumiko

AU - Tanaka, Yujiro

AU - Kawashima, Hiroshi

AU - Oguma, Eiji

AU - Yamada, Yoshitake

PY - 2017/8/1

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N2 - OBJECTIVES: To compare the diagnostic accuracy for the low-type imperforate anus between prone cross-table radiography and sonography.METHODS: We included 20 neonates with imperforate anus: 13 with a surgically proven low type and 7 with an intermediate or high type. The distance between the distal rectal pouch and the perineum (pouch-perineum distance) was measured by both sonography and prone cross-table radiography. A previously established pouch-perineum distance of 10 mm was used as the cutoff for diagnosis of a low-type imperforate anus. The fistula location was also determined with sonography. We then compared the diagnostic accuracy of the imaging methods for a low-type imperforate anus using the cutoff value of the pouch-perineum distance alone and both the cutoff value of the pouch-perineum distance and fistula location. The McNemar test was used for statistical analysis.RESULTS: With the use of only the pouch-perineum distance, the diagnostic accuracy for the low-type imperforate anus based on sonographic measurements was comparable with the accuracy achieved by prone cross-table radiographic measurements (60.0% [12 of 20] versus 45.0% [9 of 20]; P = .625). With the use of the pouch-perineum distance and fistula location, the diagnostic accuracy of sonography was significantly better than the accuracy of prone cross-table radiography (90.0% [18 of 20] versus 45% [9 of 20]; P = .012).CONCLUSIONS: The diagnostic accuracy of sonography for the low-type imperforate anus based on both the pouch-perineum distance and fistula location is better than that of prone cross-table radiography. If the pouch-perineum distance on prone cross-table radiography is greater than 10 mm, a sonographic examination to determine the fistula location could be recommended.

AB - OBJECTIVES: To compare the diagnostic accuracy for the low-type imperforate anus between prone cross-table radiography and sonography.METHODS: We included 20 neonates with imperforate anus: 13 with a surgically proven low type and 7 with an intermediate or high type. The distance between the distal rectal pouch and the perineum (pouch-perineum distance) was measured by both sonography and prone cross-table radiography. A previously established pouch-perineum distance of 10 mm was used as the cutoff for diagnosis of a low-type imperforate anus. The fistula location was also determined with sonography. We then compared the diagnostic accuracy of the imaging methods for a low-type imperforate anus using the cutoff value of the pouch-perineum distance alone and both the cutoff value of the pouch-perineum distance and fistula location. The McNemar test was used for statistical analysis.RESULTS: With the use of only the pouch-perineum distance, the diagnostic accuracy for the low-type imperforate anus based on sonographic measurements was comparable with the accuracy achieved by prone cross-table radiographic measurements (60.0% [12 of 20] versus 45.0% [9 of 20]; P = .625). With the use of the pouch-perineum distance and fistula location, the diagnostic accuracy of sonography was significantly better than the accuracy of prone cross-table radiography (90.0% [18 of 20] versus 45% [9 of 20]; P = .012).CONCLUSIONS: The diagnostic accuracy of sonography for the low-type imperforate anus based on both the pouch-perineum distance and fistula location is better than that of prone cross-table radiography. If the pouch-perineum distance on prone cross-table radiography is greater than 10 mm, a sonographic examination to determine the fistula location could be recommended.

KW - anorectal malformation

KW - imperforate anus

KW - invertogram

KW - pediatric ultrasound

KW - prone cross-table radiography

KW - sonography

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