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Fig. 3 | BMC Medical Imaging

Fig. 3

From: Value of blood oxygenation level-dependent magnetic resonance imaging in early evaluation of the response and prognosis of esophageal squamous cell carcinoma treated with definitive chemoradiotherapy: a preliminary study

Fig. 3

A 62-year-old man with ESCC received definitive chemoradiotherapy (dCRT) and achieved CR. Before dCRT, axial T2W and BOLD images showed a mass lesion at the upper thoracic esophagus (white arrow). On the corresponding color-coded R2* maps, blue-green represents low-medium R2* values, reflecting low-medium concentration of deoxyhemoglobin. Three oval regions of interest of the lesion were drawn, with a mean value of 30.58 s-1. Approximately 2–3 weeks after dCRT, T2W, BOLD, and corresponding color-coded R2* maps showed that the mass had shrunken (white arrow). Red represents high R2* values, reflecting high concentration of deoxyhemoglobin. The R2* value of the lesion increased to 56.79 s-1

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BMC Medical Imaging

ISSN: 1471-2342

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