PMC5542075_01
(a) Diagnostic coronary angiogram of the RCA showing a mobile plaque (an arrow), (b) diagnostic coronary angiogram of the LAD showing stenosis in the LAD (an arrow), (c) IVUS image showing a hyperechoic signal with acoustic shadowing (an arrow), (d) OCT image showing a high-luminance protruding mass with attenuation (an arrow), and (e) and (f) final coronary angiogram and IVUS image showing acceptable results.
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PMC5542075_01_10.1177_2050313X17724059-fig1.jpg
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Coronary angiography with a 6-F Judkins Right 4.0, Goodtec  (Goodman, Gifu, Japan) revealed a mobile mass with a stalk in the right coronary artery (RCA; Figure 1(a), arrow, and Online Video 1) and moderate stenosis in the left anterior descending artery (LAD) (Figure 1(b), arrow, and Online Video 2). However, it showed a hyperechoic signal with acoustic shadowing suspected to be superficial microcalcifications (Figure 1(c), arrow, and Online Video 3). Then, we performed optical frequency domain imaging (OFDI), FastView  (Terumo, Tokyo, Japan) which revealed a high-luminance protruding mass with attenuation that was suspected to be a calcified thrombus (Figure 1(d), arrow, and Online Video 4). The final angiography and IVUS revealed acceptable results (Figure 1(e) and (f) and Online Videos 5 and 6).