The term echocardiogram is identified in base64 scheme by the sequence ZWNob2NhcmRpb2dyYW0=, while the MD5 signature is equal to c4f2beac5f030b6a6e71dca2a735f379. The ASCII encoding of echocardiogram in hexadecimal notation is 6563686f63617264696f6772616d.