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Fig. 6B —Dual-energy subtraction radiographs in 61-year-old woman
(number 12 in Fig. 3) with
primary adenocarcinoma in left lower lobe. Cropped views of left lung show
missed cancers (arrows) on standard posteroanterior image (A)
and soft-tissue image (B). Note that three radiologists detected cancer
without dual-energy subtraction image, but none confirmed it with dual-energy
subtraction (detrimental effect). This was probably because nodule appears to
represent confluence of vessels on dual-energy subtraction soft-tissue
image.
