Re-evaluation of detectability of liver metastases by contrast-enhanced CT: added value of hepatic arterial phase imaging
| العنوان: | Re-evaluation of detectability of liver metastases by contrast-enhanced CT: added value of hepatic arterial phase imaging |
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| المؤلفون: | Shuji Date, Yukiko Honda, Haruka Higashihori, Toru Higaki, Kazuo Awai, Fuminari Tatsugami, Yoshio Monzen |
| المصدر: | Japanese Journal of Radiology. 32:467-475 |
| بيانات النشر: | Springer Science and Business Media LLC, 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | Adult, Male, medicine.medical_specialty, Enhanced ct, media_common.quotation_subject, medicine.medical_treatment, Contrast Media, Sensitivity and Specificity, Lesion, Hepatic Artery, Humans, Medicine, Contrast (vision), Radiology, Nuclear Medicine and imaging, Aged, media_common, Aged, 80 and over, Observer Variation, Receiver operating characteristic, business.industry, Liver Neoplasms, Area under the curve, Reproducibility of Results, Middle Aged, Iopamidol, Radiographic Image Enhancement, Radiation therapy, Liver, ROC Curve, Female, Dynamic ct, Radiology, medicine.symptom, Tomography, X-Ray Computed, business, Arterial phase |
| الوصف: | We compared the detectability of liver metastases on 2- and 3-phase images using robust statistical methods. Nine radiologists evaluated unenhanced CT plus portal venous phase (2-phase) images and 2-phase plus hepatic arterial phase (HAP) (3-phase) images. Our study included 54 patients with primary malignant tumors who underwent 3-phase hepatic dynamic CT more than twice to screen for liver metastases; 24 had 1–6 liver metastases measuring 4–27 mm in diameter (median 13 mm). The other 30 had no metastases. Nine board-certified radiologists participated in our observer performance study. They specified the location of the metastatic lesions and rated the probability of metastatic nodules on 2-phase images acquired with and without HAP imaging. We used jackknife alternative free-response receiver operating characteristic (JAFROC) analysis to compare their performances. For all radiologists the area under the curve without and with HAP imaging was 0.86 and 0.88, respectively; the difference was significant (p = 0.04). For metastases smaller than 10 mm the averaged lesion localization fraction without and with HAP imaging was 0.17 and 0.26 (p |
| تدمد: | 1867-108X 1867-1071 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f09965a8af1ceaf7b480f4eb1eec17ed https://doi.org/10.1007/s11604-014-0331-z |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....f09965a8af1ceaf7b480f4eb1eec17ed |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 1867108X 18671071 |
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