Transjugular intrahepatic portosystemic shunt: Accuracy of helical CT angiography in the detection of shunt abnormalities

Shailendra Chopra, Gerald D. Dodd, Kedar N Chintapalli, Hyunchul Rhim, Carlos E. Encarnacion, Julio C Palmaz, Christine C. Esola, Abraham A. Ghiatas

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

PURPOSE: To determine the sensitivity, specificity, and accuracy of helical computed tomographic (CT) angiography in the detection of transjugular intrahepatic portosystemic shunt (TIPS) stenoses or occlusions. MATERIALS AND METHODS: Thirty-seven patients underwent 50 helical CT angiographic examinations and, within 2 weeks of each examination, portography with measurement of the portosystemic pressure gradient. Helical CT angiograms were independently interpreted by three radiologists who were blinded to the results of portography. Results of helical CT angiography and portography were compared. Sensitivity and specificity of helical CT angiography were separately calculated for the demonstration of morphologic abnormalities and the determination of their hemodynamic significance. RESULTS: Of the 50 portograms, 31 (62%) demonstrated morphologic TIPS abnormalities, 24 (77%) with and seven (23%) without elevated portosystemic pressure gradients. Helical CT angiograms correctly demonstrated 30 (97%) of the 31 morphologic abnormalities and allowed correct diagnosis of 22 (92%) of the 24 hemodynamically significant abnormalities. Nineteen (38%) portograms were normal, helical CT angiograms correctly demonstrated the absence of abnormality in 17 (90%) of these cases. Sensitivity and specificity of helical CT angiography for all morphologic abnormalities were 97% and 89%, respectively, and, for hemodynamically significant abnormalities, 92% and 77%. CONCLUSION: Helical CT angiography holds promise as a screening modality for the detection of TIPS stenoses or occlusions.

Original languageEnglish (US)
Pages (from-to)115-122
Number of pages8
JournalRadiology
Volume215
Issue number1
StatePublished - 2000

Fingerprint

Transjugular Intrahepatic Portasystemic Shunt
Angiography
Portography
Sensitivity and Specificity
Pathologic Constriction
Pressure
Hemodynamics

Keywords

  • Computed tomography (CT), angiography
  • Computed tomography (CT), comparative studies
  • Computed tomography (CT), helical
  • Hypertension, portal
  • Portography
  • Shunts, Portosystemic
  • Stents and prostheses

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

Cite this

Chopra, S., Dodd, G. D., Chintapalli, K. N., Rhim, H., Encarnacion, C. E., Palmaz, J. C., ... Ghiatas, A. A. (2000). Transjugular intrahepatic portosystemic shunt: Accuracy of helical CT angiography in the detection of shunt abnormalities. Radiology, 215(1), 115-122.

Transjugular intrahepatic portosystemic shunt : Accuracy of helical CT angiography in the detection of shunt abnormalities. / Chopra, Shailendra; Dodd, Gerald D.; Chintapalli, Kedar N; Rhim, Hyunchul; Encarnacion, Carlos E.; Palmaz, Julio C; Esola, Christine C.; Ghiatas, Abraham A.

In: Radiology, Vol. 215, No. 1, 2000, p. 115-122.

Research output: Contribution to journalArticle

Chopra, S, Dodd, GD, Chintapalli, KN, Rhim, H, Encarnacion, CE, Palmaz, JC, Esola, CC & Ghiatas, AA 2000, 'Transjugular intrahepatic portosystemic shunt: Accuracy of helical CT angiography in the detection of shunt abnormalities', Radiology, vol. 215, no. 1, pp. 115-122.
Chopra S, Dodd GD, Chintapalli KN, Rhim H, Encarnacion CE, Palmaz JC et al. Transjugular intrahepatic portosystemic shunt: Accuracy of helical CT angiography in the detection of shunt abnormalities. Radiology. 2000;215(1):115-122.
Chopra, Shailendra ; Dodd, Gerald D. ; Chintapalli, Kedar N ; Rhim, Hyunchul ; Encarnacion, Carlos E. ; Palmaz, Julio C ; Esola, Christine C. ; Ghiatas, Abraham A. / Transjugular intrahepatic portosystemic shunt : Accuracy of helical CT angiography in the detection of shunt abnormalities. In: Radiology. 2000 ; Vol. 215, No. 1. pp. 115-122.
@article{bd5967e19bd4476fbc9e04f8c2d6d3ca,
title = "Transjugular intrahepatic portosystemic shunt: Accuracy of helical CT angiography in the detection of shunt abnormalities",
abstract = "PURPOSE: To determine the sensitivity, specificity, and accuracy of helical computed tomographic (CT) angiography in the detection of transjugular intrahepatic portosystemic shunt (TIPS) stenoses or occlusions. MATERIALS AND METHODS: Thirty-seven patients underwent 50 helical CT angiographic examinations and, within 2 weeks of each examination, portography with measurement of the portosystemic pressure gradient. Helical CT angiograms were independently interpreted by three radiologists who were blinded to the results of portography. Results of helical CT angiography and portography were compared. Sensitivity and specificity of helical CT angiography were separately calculated for the demonstration of morphologic abnormalities and the determination of their hemodynamic significance. RESULTS: Of the 50 portograms, 31 (62{\%}) demonstrated morphologic TIPS abnormalities, 24 (77{\%}) with and seven (23{\%}) without elevated portosystemic pressure gradients. Helical CT angiograms correctly demonstrated 30 (97{\%}) of the 31 morphologic abnormalities and allowed correct diagnosis of 22 (92{\%}) of the 24 hemodynamically significant abnormalities. Nineteen (38{\%}) portograms were normal, helical CT angiograms correctly demonstrated the absence of abnormality in 17 (90{\%}) of these cases. Sensitivity and specificity of helical CT angiography for all morphologic abnormalities were 97{\%} and 89{\%}, respectively, and, for hemodynamically significant abnormalities, 92{\%} and 77{\%}. CONCLUSION: Helical CT angiography holds promise as a screening modality for the detection of TIPS stenoses or occlusions.",
keywords = "Computed tomography (CT), angiography, Computed tomography (CT), comparative studies, Computed tomography (CT), helical, Hypertension, portal, Portography, Shunts, Portosystemic, Stents and prostheses",
author = "Shailendra Chopra and Dodd, {Gerald D.} and Chintapalli, {Kedar N} and Hyunchul Rhim and Encarnacion, {Carlos E.} and Palmaz, {Julio C} and Esola, {Christine C.} and Ghiatas, {Abraham A.}",
year = "2000",
language = "English (US)",
volume = "215",
pages = "115--122",
journal = "Radiology",
issn = "0033-8419",
publisher = "Radiological Society of North America Inc.",
number = "1",

}

TY - JOUR

T1 - Transjugular intrahepatic portosystemic shunt

T2 - Accuracy of helical CT angiography in the detection of shunt abnormalities

AU - Chopra, Shailendra

AU - Dodd, Gerald D.

AU - Chintapalli, Kedar N

AU - Rhim, Hyunchul

AU - Encarnacion, Carlos E.

AU - Palmaz, Julio C

AU - Esola, Christine C.

AU - Ghiatas, Abraham A.

PY - 2000

Y1 - 2000

N2 - PURPOSE: To determine the sensitivity, specificity, and accuracy of helical computed tomographic (CT) angiography in the detection of transjugular intrahepatic portosystemic shunt (TIPS) stenoses or occlusions. MATERIALS AND METHODS: Thirty-seven patients underwent 50 helical CT angiographic examinations and, within 2 weeks of each examination, portography with measurement of the portosystemic pressure gradient. Helical CT angiograms were independently interpreted by three radiologists who were blinded to the results of portography. Results of helical CT angiography and portography were compared. Sensitivity and specificity of helical CT angiography were separately calculated for the demonstration of morphologic abnormalities and the determination of their hemodynamic significance. RESULTS: Of the 50 portograms, 31 (62%) demonstrated morphologic TIPS abnormalities, 24 (77%) with and seven (23%) without elevated portosystemic pressure gradients. Helical CT angiograms correctly demonstrated 30 (97%) of the 31 morphologic abnormalities and allowed correct diagnosis of 22 (92%) of the 24 hemodynamically significant abnormalities. Nineteen (38%) portograms were normal, helical CT angiograms correctly demonstrated the absence of abnormality in 17 (90%) of these cases. Sensitivity and specificity of helical CT angiography for all morphologic abnormalities were 97% and 89%, respectively, and, for hemodynamically significant abnormalities, 92% and 77%. CONCLUSION: Helical CT angiography holds promise as a screening modality for the detection of TIPS stenoses or occlusions.

AB - PURPOSE: To determine the sensitivity, specificity, and accuracy of helical computed tomographic (CT) angiography in the detection of transjugular intrahepatic portosystemic shunt (TIPS) stenoses or occlusions. MATERIALS AND METHODS: Thirty-seven patients underwent 50 helical CT angiographic examinations and, within 2 weeks of each examination, portography with measurement of the portosystemic pressure gradient. Helical CT angiograms were independently interpreted by three radiologists who were blinded to the results of portography. Results of helical CT angiography and portography were compared. Sensitivity and specificity of helical CT angiography were separately calculated for the demonstration of morphologic abnormalities and the determination of their hemodynamic significance. RESULTS: Of the 50 portograms, 31 (62%) demonstrated morphologic TIPS abnormalities, 24 (77%) with and seven (23%) without elevated portosystemic pressure gradients. Helical CT angiograms correctly demonstrated 30 (97%) of the 31 morphologic abnormalities and allowed correct diagnosis of 22 (92%) of the 24 hemodynamically significant abnormalities. Nineteen (38%) portograms were normal, helical CT angiograms correctly demonstrated the absence of abnormality in 17 (90%) of these cases. Sensitivity and specificity of helical CT angiography for all morphologic abnormalities were 97% and 89%, respectively, and, for hemodynamically significant abnormalities, 92% and 77%. CONCLUSION: Helical CT angiography holds promise as a screening modality for the detection of TIPS stenoses or occlusions.

KW - Computed tomography (CT), angiography

KW - Computed tomography (CT), comparative studies

KW - Computed tomography (CT), helical

KW - Hypertension, portal

KW - Portography

KW - Shunts, Portosystemic

KW - Stents and prostheses

UR - http://www.scopus.com/inward/record.url?scp=0034025912&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034025912&partnerID=8YFLogxK

M3 - Article

C2 - 10751476

AN - SCOPUS:0034025912

VL - 215

SP - 115

EP - 122

JO - Radiology

JF - Radiology

SN - 0033-8419

IS - 1

ER -