| Value of
ureteral compression |
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| n | Normal
peristalsis may leave portions of |
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| ureters empty of
contrast |
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| n | With compression,
ureters are compressed |
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| aginst pelvis and
are temporarily obstructed |
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| n | As a result, the
proximal ureters and |
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| intrarenal
collecting system are optimally |
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| distended |
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