Abstract
The 2D code is useful in the management of clinical pathology systems. When we introduced a new pathology system, Micro QR Code printable cassette printers were installed. However, frequent recognition error by the Micro QR Code was observed on the cassettes after paraffin embedding. Here, we investigated the recognition rate by comparing the Micro QR Code with Data Matrix ECC200 under the same conditions. As a result, 14 errors were observed in 522 routine cassette samples when using the Micro QR Code, whereas only 1 error was observed when using the Data Matrix ECC200. Thus, the recognition of Data Matrix ECC200 was quicker and more accurate than that of the Micro QR Code. With the Micro QR Code, the position detection pattern had a scratch and a defect on the cassette, which were not observed when using the Data Matrix ECC200. In a pathology system, it was assumed that the position detection pattern affected the recognition rate or speed of the 2D code system. These data indicated that Data Matrix ECC200 is useful for the cassette printing in our operation, in terms of maintaining the position detection pattern and recognition speed.
