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(A) Diagram illustrating an assembled complex phantom. The discs of Tufset (a) are mounted on metal rods (b) to produce a stenotic lumen (c). (B) Photograph of a mould of a complex phantom. The balloon is mounted on a mandrel adjacent to the calibration cylinder. Diameters are measured as shown (solid arrows). Lesion length is measured between the indentations (dotted arrow).
