Abstract
Helical computed tomography (CT) was used to demonstrate the distribution of crossing vessels in patients with ureteropelvic junction (UPJ) obstruction for planning surgical management. Twenty patients with symptomatic UPJ obstruction were evaluated with dual-phase contrast material-enhanced helical CT. In addition to axial images, coronal, sagittal, and curved paracoronal images along the crossing vessels or the UPJ were obtained by means of multiplanar reconstruction. Crossing vessels were evaluated according to type, position, and association with UPJ obstruction. Fifteen vessels in 12 of the 20 patients were found to cross the UPJ at helical CT. Nine vessels were arteries and six were veins; seven vessels crossed anteriorly and eight crossed posteriorly. In 11 patients, crossing vessels were thought to be associated with UPJ obstruction at helical CT; retroperitoneoscopic repair was performed, and the diagnosis was found to have been accurate in all except one. In the eight patients in whom no significant vessels were seen and the one patient in whom the crossing vessel was not associated with UPJ obstruction at helical CT, endopyelotomy was performed and UPJ obstruction was relieved, with no complications. Helical CT is useful for evaluation of vessels crossing the UPJ and for planning surgical management.
| Original language | English |
|---|---|
| Pages (from-to) | 1383-1393 |
| Number of pages | 11 |
| Journal | Radiographics |
| Volume | 20 |
| Issue number | 5 |
| Publication status | Published - Sep 2000 |
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Keywords
- Computed tomography (CT), helical, 821.12115
- Renal arteries, 96.134
- Renal veins, 96.134
- Ureter, stenosis or obstruction, 821.842
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Radiological and Ultrasound Technology
Cite this
Evaluation of crossing vessels in patients with ureteropelvic junction obstruction by means of helical CT. / Mitsumori, Akihito; Yasui, Kotaro; Akaki, Siro; Togami, Izumi; Joja, Ikuo; Hashimoto, Hideaki; Kumon, Hiromi; Hiraki, Yoshio.
In: Radiographics, Vol. 20, No. 5, 09.2000, p. 1383-1393.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evaluation of crossing vessels in patients with ureteropelvic junction obstruction by means of helical CT
AU - Mitsumori, Akihito
AU - Yasui, Kotaro
AU - Akaki, Siro
AU - Togami, Izumi
AU - Joja, Ikuo
AU - Hashimoto, Hideaki
AU - Kumon, Hiromi
AU - Hiraki, Yoshio
PY - 2000/9
Y1 - 2000/9
N2 - Helical computed tomography (CT) was used to demonstrate the distribution of crossing vessels in patients with ureteropelvic junction (UPJ) obstruction for planning surgical management. Twenty patients with symptomatic UPJ obstruction were evaluated with dual-phase contrast material-enhanced helical CT. In addition to axial images, coronal, sagittal, and curved paracoronal images along the crossing vessels or the UPJ were obtained by means of multiplanar reconstruction. Crossing vessels were evaluated according to type, position, and association with UPJ obstruction. Fifteen vessels in 12 of the 20 patients were found to cross the UPJ at helical CT. Nine vessels were arteries and six were veins; seven vessels crossed anteriorly and eight crossed posteriorly. In 11 patients, crossing vessels were thought to be associated with UPJ obstruction at helical CT; retroperitoneoscopic repair was performed, and the diagnosis was found to have been accurate in all except one. In the eight patients in whom no significant vessels were seen and the one patient in whom the crossing vessel was not associated with UPJ obstruction at helical CT, endopyelotomy was performed and UPJ obstruction was relieved, with no complications. Helical CT is useful for evaluation of vessels crossing the UPJ and for planning surgical management.
AB - Helical computed tomography (CT) was used to demonstrate the distribution of crossing vessels in patients with ureteropelvic junction (UPJ) obstruction for planning surgical management. Twenty patients with symptomatic UPJ obstruction were evaluated with dual-phase contrast material-enhanced helical CT. In addition to axial images, coronal, sagittal, and curved paracoronal images along the crossing vessels or the UPJ were obtained by means of multiplanar reconstruction. Crossing vessels were evaluated according to type, position, and association with UPJ obstruction. Fifteen vessels in 12 of the 20 patients were found to cross the UPJ at helical CT. Nine vessels were arteries and six were veins; seven vessels crossed anteriorly and eight crossed posteriorly. In 11 patients, crossing vessels were thought to be associated with UPJ obstruction at helical CT; retroperitoneoscopic repair was performed, and the diagnosis was found to have been accurate in all except one. In the eight patients in whom no significant vessels were seen and the one patient in whom the crossing vessel was not associated with UPJ obstruction at helical CT, endopyelotomy was performed and UPJ obstruction was relieved, with no complications. Helical CT is useful for evaluation of vessels crossing the UPJ and for planning surgical management.
KW - Computed tomography (CT), helical, 821.12115
KW - Renal arteries, 96.134
KW - Renal veins, 96.134
KW - Ureter, stenosis or obstruction, 821.842
UR - http://www.scopus.com/inward/record.url?scp=0034263923&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034263923&partnerID=8YFLogxK
M3 - Article
C2 - 10992027
AN - SCOPUS:0034263923
VL - 20
SP - 1383
EP - 1393
JO - Radiographics
JF - Radiographics
SN - 0271-5333
IS - 5
ER -