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Functional CT of squamous cell carcinoma in the head and neck : repeatability of tumor and muscle quantitative measurements, inter- and intra-observer agreementBisdas, Sotirios ...Our purpose was to determine the repeatability of squamous cell cancer in headand neck (SCCHN) and muscle tissue vascularity measurements as well as theinter- and intra-observer agreement using ... dynamic contrast-enhanced (DCE) multi-detector CT (MDCT). Twelve patients with histologically proven SCCHN were twice examined within 46 h. Measurement error and repeatability were assessed for each of the four functional parameters using the Bland-Altman plots. Two independent observers recorded the vascularity values of the tumor tissue; inter- and intra-observer agreement was assessed using the Bland-Altman plot analysis and intraclass correlation coefficients. For the tumor, the mean difference (95% limits of agreement) was 0.40 ml/min/100 g tissue (-6.80, 9.60); 0.01 (-0.96, 0.97) ml/100 g tissue; 0.20 (-1.80, 2.30) s; and 0.40 (-2.00, 2.80) ml/min/100 g tissue for BF, BV, MTT, and PS, respectively. For the muscle, the mean difference (95% limits of agreement) was -0.18 (-1.70, 1.35), 0.04 (-1.17, 1.35), -0.10 (-5.80, 5.60), and -0.10 (-2.20, 2.00), respectively. Measurement changes of at least +/-8%, 30%, 36%, and 13% were found to be significant for BF, BV, MTT, and PS, respectively. There was better intra- than inter-observer agreement.Source: European radiology. - ISSN 0938-7994 (Vol. 18, no. 10, 2008, str. 2241-2250)Type of material - article, component partPublish date - 2008Language - englishCOBISS.SI-ID - 27883993
Author
Bisdas, Sotirios |
Šurlan Popović, Katarina |
Didanovič, Vojislav |
Vogl, Thomas J.
Topics
Carcinoma, Squamous Cell |
Radiography |
Contrast Media |
Head And Neck Neoplasms |
Radiography |
Iopamidol |
Analogs & Derivatives |
Diagnostic Use |
Neck Muscles |
Radiography |
Observer Variation |
Reproducibility Of Results |
Sensitivity And Specificity |
Tomography, X-Ray Computed |
Methods |
Ponovljivost rezultatov |
Občutljivost in specifičnost |
Iopamidol |
Tomografija radiografska, računalniška |
Vrat, mišice |
Opazovanje, različnost |
Karcinom ploščatocelični |
Kontrastna sredstva |
Glava in vrat, novotvorbe
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Database name | Field | Year |
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Bisdas, Sotirios | ![]() |
Šurlan Popović, Katarina | 33508 |
Didanovič, Vojislav | 28716 |
Vogl, Thomas J. | ![]() |
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