Abstract:
PURPOSE:To evaluate the performance of computed tomographic urography (CTU), static-fluid magnetic resonance urography (static-fluid MRU) and combinations of CTU, static-fluid MRU and diffusion weighted imaging (DWI) in the diagnosis of upper urinary tract cancer. MATERIAL AND METHODS:Between January 2010 and June 2011, patients with suspected UUT cancer underwent CTU, static-fluid MRU and DWI (b=1000s/mm(2)) within a 1-week period. The diagnostic performances of CTU, static-fluid MRU and combinations of CTU, static-fluid MRU and DWI for upper urinary tract cancer were prospectively evaluated. The ureteroscopic and histopathologic findings were compared with the imaging findings. RESULTS:Compared to static-fluid MRU alone (sensitivity: 76/75%, reader 1/reader 2), combining DWI with MRI can increase the sensitivity (sensitivity: 84/84%, p=0.031/p=0.016) of upper urinary tract cancer diagnosis. CTU had greater sensitivity (95/94%) and accuracy (92/91%) than both static-fluid MRU (sensitivity: p<0.001/p<0.001 and accuracy: 83/81%, p=0.001/p<0.001) and static-fluid MRU with DWI (sensitivity: p=0.023/p=0.039 and accuracy: 87/85%, p=0.042/p=0.049) for the diagnosis of upper urinary tract cancers. Compared with CTU alone, CTU with DWI did not significantly increase sensitivity, specificity or accuracy. However, the diagnostic confidence was improved when the combined technique was used (p=0.031/p=0.024). Moreover, there was no significant change in sensitivity, specificity, accuracy or diagnostic confidence when static-fluid MRU was used in combination with CTU and DWI. CONCLUSION:Although there is a potential role for static-fluid MRU and static-fluid MRU with DWI in urinary tract imaging, CTU is still the better choice for the diagnosis of upper urinary tract cancer. Combining DWI with CTU can help improve confidence in upper urinary tract cancer diagnoses.
journal_name
Eur J Radioljournal_title
European journal of radiologyauthors
Wu GY,Lu Q,Wu LM,Zhang J,Chen XX,Xu JRdoi
10.1016/j.ejrad.2014.02.019subject
Has Abstractpub_date
2014-06-01 00:00:00pages
893-899issue
6eissn
0720-048Xissn
1872-7727pii
S0720-048X(14)00113-2journal_volume
83pub_type
社论abstract:PURPOSE:To evaluate image quality (IQ) and radiation dose in cone-beam computed tomography (CBCT) of the ankle using a novel twin robotic X-ray system. METHOD:We examined 16 cadaveric ankles with standard-dose (FD) and low-dose (LD) protocols using the new system's CBCT mode. For comparison, we performed multi-slice C...
journal_title:European journal of radiology
pub_type: 杂志文章,随机对照试验
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更新日期:2019-10-01 00:00:00
abstract::To determine if proton magnetic resonance spectroscopy (1H MRS) of thyroid carcinoma is feasible and to determine if 1H MRS spectra of malignant tumors differ from that of normal thyroid tissue. We performed 1H MRS at 1.5 T at echo-times (TE) 136 and 272 ms to examine eight patients with thyroid cancer (primary tumour...
journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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更新日期:1998-07-01 00:00:00
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journal_title:European journal of radiology
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journal_title:European journal of radiology
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journal_title:European journal of radiology
pub_type: 杂志文章
doi:10.1016/j.ejrad.2005.01.006
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journal_title:European journal of radiology
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更新日期:2015-05-01 00:00:00
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journal_title:European journal of radiology
pub_type: 杂志文章,评审
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journal_title:European journal of radiology
pub_type: 杂志文章
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更新日期:2015-03-01 00:00:00
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journal_title:European journal of radiology
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更新日期:2010-03-01 00:00:00
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journal_title:European journal of radiology
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更新日期:1981-05-01 00:00:00
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更新日期:2013-08-01 00:00:00