Abstract
Purpose. In this study we compared duplex Doppler sonography, conventional angiography and CT angiography for the evaluation of hepatic arterial complications following orthotopic liver transplantation (OLT). Material and methods. CT angiography, with Maximum Intensity Projection (MIP) and Volume Rendering reconstructions, was performed in 11 patients with well-grounded suspect of hepatic artery stenosis or thrombosis after routine duplex Doppler examination. Eight patients underwent conventional angiography. Results. CT detected three out of four duplex doppler false positives and confirmed the diagnostic suspect in four cases. In two cases it showed a shift of the blood flow towards the splenic artery with hepatic hypoperfusion. In one case a wrong delay rendered the study unuseful. In seven out of eight patients conventional angiography confirmed CT angiography findings. Discussion. The follow up of OLT arterial complications is now performed with duplex doppler sonography; this technique has a satisfactory sensitivity and specificity, but far from 100%. Therefore in some patients the diagnosis of arterial obstruction might be delayed, with the risk of serious complications; in other cases with ultrasonographic false positive findings, useless angiographic examinations are performed. In our experience CT angiography proved to be a precious tool, which might be included in the diagnostic algorithm of arterial complications after OLT. Particulary CT angiography seems to be suitable for the cases of discordance between clinical and duplex doppler findings, to improve the overall diagnostic accuracy. Conclusion. In our experience CT-angiography proved to be accurate and satisfactory as a second step examination after duplex-doppler in the diagnostic algorythm of adult OLT arterial complications.
| Original language | Italian |
|---|---|
| Pages (from-to) | 348-356 |
| Number of pages | 9 |
| Journal | Radiologia Medica |
| Volume | 102 |
| Issue number | 5-6 |
| Publication status | Published - Nov 2001 |
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ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
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L'angiografia TC nello studio delle complicanze arteriose del trapianto ortotopico di fegato dell'adulto. / Piolanti, Marco; Fabbro, Elena; Pascali, Emilia; Rossi, Cristina; Caputo, Mauro; Varotti, Giovanni; Papa, Sergio; Grazi, Gianluca; Gavelli, Giampaolo.
In: Radiologia Medica, Vol. 102, No. 5-6, 11.2001, p. 348-356.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - L'angiografia TC nello studio delle complicanze arteriose del trapianto ortotopico di fegato dell'adulto
AU - Piolanti, Marco
AU - Fabbro, Elena
AU - Pascali, Emilia
AU - Rossi, Cristina
AU - Caputo, Mauro
AU - Varotti, Giovanni
AU - Papa, Sergio
AU - Grazi, Gianluca
AU - Gavelli, Giampaolo
PY - 2001/11
Y1 - 2001/11
N2 - Purpose. In this study we compared duplex Doppler sonography, conventional angiography and CT angiography for the evaluation of hepatic arterial complications following orthotopic liver transplantation (OLT). Material and methods. CT angiography, with Maximum Intensity Projection (MIP) and Volume Rendering reconstructions, was performed in 11 patients with well-grounded suspect of hepatic artery stenosis or thrombosis after routine duplex Doppler examination. Eight patients underwent conventional angiography. Results. CT detected three out of four duplex doppler false positives and confirmed the diagnostic suspect in four cases. In two cases it showed a shift of the blood flow towards the splenic artery with hepatic hypoperfusion. In one case a wrong delay rendered the study unuseful. In seven out of eight patients conventional angiography confirmed CT angiography findings. Discussion. The follow up of OLT arterial complications is now performed with duplex doppler sonography; this technique has a satisfactory sensitivity and specificity, but far from 100%. Therefore in some patients the diagnosis of arterial obstruction might be delayed, with the risk of serious complications; in other cases with ultrasonographic false positive findings, useless angiographic examinations are performed. In our experience CT angiography proved to be a precious tool, which might be included in the diagnostic algorithm of arterial complications after OLT. Particulary CT angiography seems to be suitable for the cases of discordance between clinical and duplex doppler findings, to improve the overall diagnostic accuracy. Conclusion. In our experience CT-angiography proved to be accurate and satisfactory as a second step examination after duplex-doppler in the diagnostic algorythm of adult OLT arterial complications.
AB - Purpose. In this study we compared duplex Doppler sonography, conventional angiography and CT angiography for the evaluation of hepatic arterial complications following orthotopic liver transplantation (OLT). Material and methods. CT angiography, with Maximum Intensity Projection (MIP) and Volume Rendering reconstructions, was performed in 11 patients with well-grounded suspect of hepatic artery stenosis or thrombosis after routine duplex Doppler examination. Eight patients underwent conventional angiography. Results. CT detected three out of four duplex doppler false positives and confirmed the diagnostic suspect in four cases. In two cases it showed a shift of the blood flow towards the splenic artery with hepatic hypoperfusion. In one case a wrong delay rendered the study unuseful. In seven out of eight patients conventional angiography confirmed CT angiography findings. Discussion. The follow up of OLT arterial complications is now performed with duplex doppler sonography; this technique has a satisfactory sensitivity and specificity, but far from 100%. Therefore in some patients the diagnosis of arterial obstruction might be delayed, with the risk of serious complications; in other cases with ultrasonographic false positive findings, useless angiographic examinations are performed. In our experience CT angiography proved to be a precious tool, which might be included in the diagnostic algorithm of arterial complications after OLT. Particulary CT angiography seems to be suitable for the cases of discordance between clinical and duplex doppler findings, to improve the overall diagnostic accuracy. Conclusion. In our experience CT-angiography proved to be accurate and satisfactory as a second step examination after duplex-doppler in the diagnostic algorythm of adult OLT arterial complications.
KW - Computed Tomography (CT), three dimensional
KW - Hepatic arteries, stenosis or thrombosis
KW - Hepatic arteries, thrombosis
KW - Liver, transplantation
KW - Ultrasound, Doppler study
UR - http://www.scopus.com/inward/record.url?scp=0035523578&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035523578&partnerID=8YFLogxK
M3 - Articolo
VL - 102
SP - 348
EP - 356
JO - Radiologia Medica
JF - Radiologia Medica
SN - 0033-8362
IS - 5-6
ER -