Abstract
The MR appearance of thrombosis of the portal vein and its branches using gradient echo (GRE) sequences is described. The study consists of two separate parts. In the first part, five normal volunteers were examined to select the optimal section plane for each portal vessel to be studied. Given the “time of flight” effect of GRE sequences, a scan plane perpendicular to the direction of flow was used to obtain maximal signal enhancement of flowing blood. In the second part of the study, 13 patients with thrombosis of the portal system diagnosed by Doppler sonography, CT, and digital subtraction angiography were examined with the GRE technique. Gradient echo MR confirmed the presence and defined the extent of vessel thrombosis with high diagnostic accuracy. In addition, it proved accurate in detecting portosystemic collaterals. We concluded that the GRE technique can be effectively used as a complement to conventional SE MR to further delineate portal vessels.
| Original language | English |
|---|---|
| Pages (from-to) | 226-234 |
| Number of pages | 9 |
| Journal | Journal of Computer Assisted Tomography |
| Volume | 16 |
| Issue number | 2 |
| Publication status | Published - 1992 |
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Keywords
- Portal-Veins
- Resonance imaging
- Techniques
- Thrombosis-Magnetic
- Veins
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Gradient echo mri of portal vein thrombosis. / Martinoli, Carlo; Cittadini, Giuseppe; Pastorino, Caterina; Rollandi, Gianandrea; Derchi, Lorenzo E.; Grozio, Giampaolo; Garlaschi, Giacomo.
In: Journal of Computer Assisted Tomography, Vol. 16, No. 2, 1992, p. 226-234.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Gradient echo mri of portal vein thrombosis
AU - Martinoli, Carlo
AU - Cittadini, Giuseppe
AU - Pastorino, Caterina
AU - Rollandi, Gianandrea
AU - Derchi, Lorenzo E.
AU - Grozio, Giampaolo
AU - Garlaschi, Giacomo
PY - 1992
Y1 - 1992
N2 - The MR appearance of thrombosis of the portal vein and its branches using gradient echo (GRE) sequences is described. The study consists of two separate parts. In the first part, five normal volunteers were examined to select the optimal section plane for each portal vessel to be studied. Given the “time of flight” effect of GRE sequences, a scan plane perpendicular to the direction of flow was used to obtain maximal signal enhancement of flowing blood. In the second part of the study, 13 patients with thrombosis of the portal system diagnosed by Doppler sonography, CT, and digital subtraction angiography were examined with the GRE technique. Gradient echo MR confirmed the presence and defined the extent of vessel thrombosis with high diagnostic accuracy. In addition, it proved accurate in detecting portosystemic collaterals. We concluded that the GRE technique can be effectively used as a complement to conventional SE MR to further delineate portal vessels.
AB - The MR appearance of thrombosis of the portal vein and its branches using gradient echo (GRE) sequences is described. The study consists of two separate parts. In the first part, five normal volunteers were examined to select the optimal section plane for each portal vessel to be studied. Given the “time of flight” effect of GRE sequences, a scan plane perpendicular to the direction of flow was used to obtain maximal signal enhancement of flowing blood. In the second part of the study, 13 patients with thrombosis of the portal system diagnosed by Doppler sonography, CT, and digital subtraction angiography were examined with the GRE technique. Gradient echo MR confirmed the presence and defined the extent of vessel thrombosis with high diagnostic accuracy. In addition, it proved accurate in detecting portosystemic collaterals. We concluded that the GRE technique can be effectively used as a complement to conventional SE MR to further delineate portal vessels.
KW - Portal-Veins
KW - Resonance imaging
KW - Techniques
KW - Thrombosis-Magnetic
KW - Veins
UR - http://www.scopus.com/inward/record.url?scp=0026587586&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0026587586&partnerID=8YFLogxK
M3 - Article
C2 - 1545018
AN - SCOPUS:0026587586
VL - 16
SP - 226
EP - 234
JO - Journal of Computer Assisted Tomography
JF - Journal of Computer Assisted Tomography
SN - 0363-8715
IS - 2
ER -