Comparison of T2-weighted and contrast-enhanced T1-weighted MR imaging at 1.5 T for assessing the local extent of cervical carcinoma
| Autor: | Hiroshi Shinmoto, Hirotaka Akita, Sachio Kuribayashi, Ayano Akita, Takuma Fujii, Shigenori Hayashi, Akihiro Tanimoto, Shuji Mikami |
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| Rok vydání: | 2011 |
| Předmět: |
Adult
Gadolinium DTPA medicine.medical_specialty medicine.medical_treatment Contrast Media Uterine Cervical Neoplasms Hysterectomy Risk Assessment Sensitivity and Specificity Disease-Free Survival Cohort Studies Biopsy Medical imaging Humans Medicine Neoplasm Invasiveness Radiology Nuclear Medicine and imaging Stage (cooking) Aged Neoplasm Staging Retrospective Studies Neuroradiology medicine.diagnostic_test business.industry Biopsy Needle Ultrasound Cancer Magnetic resonance imaging General Medicine Middle Aged Image Enhancement medicine.disease Immunohistochemistry Magnetic Resonance Imaging Survival Analysis Female Radiology business Follow-Up Studies |
| Zdroj: | European Radiology. 21:1850-1857 |
| ISSN: | 1432-1084 0938-7994 |
| Popis: | To compare two MR sequences at 1.5 T—T2-weighted and contrast-enhanced T1-weighted images—by using macroscopic sections to determine which image type enables the most accurate assessment of cervical carcinoma. Forty consecutive patients (mean age, 39.2 years) with biopsy-proven cervical carcinoma were included. Each MR sequence was assessed for tumour localisations, tumour margins, and cancer extent with the consensus of two readers, and tumour margins were rated on a five-point scale. MR findings were correlated with histopathological findings. Contrast-to-noise ratios (CNRs) obtained with each image were compared using nonparametric tests. Thirty-one of 40 patients underwent hysterectomies and nine of 40 underwent trachelectomies. In 36 patients, lesions were identified on at least one sequence. The tumours at stage 1B or higher were detected in 94.7% on contrast-enhanced T1-weighted images and in 76.3% on T2-weighted images (P |
| Databáze: | OpenAIRE |
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