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[Evaluation of tumor staging using echography in bladder tumors (2)]
J Palou1, E A Granados, P de la Torre
1Fundación Puigvert, Barcelona.
Actas Urologicas Espanolas
|November 1, 1991
Summary
Echography is valuable for bladder tumor grading, showing 85% sensitivity for detection. While generally accurate, some cases of under- or over-grading occurred compared to transurethral resection histology.
Area of Science:
- Urology
- Medical Imaging
Background:
- Accurate bladder tumor grading is crucial for effective treatment planning.
- Transurethral resection (TUR) histology is the standard for tumor grading.
- Echography's role in pre-treatment grading requires further investigation.
Purpose of the Study:
- To evaluate the diagnostic value of echography in bladder tumor grading.
- To compare echography findings with post-operative histology.
- To assess the sensitivity and predictive value of echography for tumor detection.
Main Methods:
- Echography was performed on 87 patients.
- Standard urological examinations including cystoscopy and bimanual touch were conducted.
- Histology study via transurethral resection (TUR) served as the gold standard.
Main Results:
- Echography achieved 85% sensitivity for tumor detection.
- The positive predictive value of echography was 98.8%.
- Histology revealed echography under-grading in 2.7% and over-grading in 9.7% of diagnosed tumors, with an 86.3% correlation.
Conclusions:
- Echography demonstrates significant value in detecting bladder tumors.
- The technique shows a high degree of accuracy in tumor grading when compared to TUR histology.
- Echography can be a useful adjunct tool in the pre-treatment assessment of bladder tumors.