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. 2022 Nov 3;65(3):479–488. doi: 10.1007/s00234-022-03075-9

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© The Author(s) 2022

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — The top row shows the outline of the manual segmentation (gold standard); the middle row shows the outline of the qER–NCCT software; and the bottom row shows the A and B diameters of the ABC/2 measurement method. The volume of each measurement is shown in the bottom right corner of each image. The left 3 columns show typical cases with excellent agreement with supra-, infratentorial, and intraventricular locations, respectively. The fourth and fifth columns illustrate two typical cases of large heterogenous lobar ICH where the qER–NCCT software has delineated only the most hyperintense portions of the hematomas, thereby underestimating the total ICH volume. The sixth column illustrates a heterogenously shaped ICH where the ABC/2-method overestimates the hematoma volume, whereas the agreement between the qER–NCCT software and manual segmentation is excellent