Correlation and agreement between contrast-enhanced ultrasonography and perfusion computed tomography for assessment of liver metastases from endocrine tumors: normalization enhances correlation
In: Ultrasound in medicinebiology, Jg. 38 (2011-07-16), Heft 6
Online
unknown
Zugriff:
We studied correlation and agreement between perfusion parameters derived from contrast-enhanced ultrasonography (CEUS) and computed tomography (CT). Both techniques were performed in 16 patients with proven liver metastases from endocrine tumor. Replenishment study after ultrasound-induced destruction of microbubbles was used for CEUS quantification. CEUS-derived relative values of blood flow, blood volume and mean transit time were compared with perfusion CT-derived parameters measured in the same tumors. Significant correlation was observed between CEUS normalized values and CT absolute tumor values for blood flow (r = 0.58; p = 0.018), blood volume (r = 0.61; p = 0.012) and mean transit time (r = 0.52; p = 0.037). Correlation was not significant for non-normalized values. Agreement between CEUS normalized values and perfusion CT relative values was significant (p0.04). Estimated bias between CEUS and CT for relative perfusion values was -1.38 (-5.02; 2.27) for blood flow, +0.26 (-0.79; 1.31) for blood volume and +0.21 (-0.46; 0.87) for mean transit time. We conclude that normalization markedly increased correlation between CEUS- and CT-derived perfusion values and allowed agreement assessment.
Titel: |
Correlation and agreement between contrast-enhanced ultrasonography and perfusion computed tomography for assessment of liver metastases from endocrine tumors: normalization enhances correlation
|
---|---|
Autor/in / Beteiligte Person: | Pilleul, Frank ; Guibal, Aymeric ; Lucidarme, Olivier ; Walter, Thomas ; Mulé, Sébastien ; S. Lori Bridal ; Lombard-Bohas, Catherine ; Frouin, Frédérique ; Lefort, Thibaud |
Link: | |
Zeitschrift: | Ultrasound in medicinebiology, Jg. 38 (2011-07-16), Heft 6 |
Veröffentlichung: | 2011 |
Medientyp: | unknown |
ISSN: | 1879-291X (print) |
Schlagwort: |
|
Sonstiges: |
|