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Lincz LF, Makhija K, Attalla K, Scorgie FE, Enjeti AK, Prasad R. A comparative evaluation of three consecutive artificial intelligence algorithms released by Techcyte for identification of blasts and white blood cells in abnormal peripheral blood films. Int J Lab Hematol 2024; 46:92-98. [PMID: 37786915 DOI: 10.1111/ijlh.14180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 09/14/2023] [Indexed: 10/04/2023]
Abstract
INTRODUCTION Digital pathology artificial intelligence (AI) platforms have the capacity to improve over time through "deep machine learning." We have previously reported on the accuracy of peripheral white blood cell (WBC) differential and blast identification by Techcyte (Techcyte, Inc., Orem, UT, USA), a digital scanner-agnostic web-based system for blood film reporting. The aim of the current study was to compare AI protocols released over time to assess improvement in cell identification. METHODS WBC differentials were performed using Techcyte's online AI software on the same 124 digitized abnormal peripheral blood films (including 64 acute and 22 chronic leukaemias) in 2019 (AI1), 2020 (AI2), and 2022 (AI3), with no reassignment by a morphologist at any time point. AI results were correlated to the "gold standard" of manual microscopy, and comparison of Lin's concordance coefficients (LCC) and sensitivity and specificity of blast identification were used to determine the superior AI version. RESULTS AI correlations (r) with manual microscopy for individual cell types ranged from 0.50-0.90 (AI1), 0.66-0.86 (AI2) and 0.71-0.91 (AI3). AI3 concordance with manual microscopy was significantly improved compared to AI1 for identification of neutrophils (LCC AI3 = 0.86 vs. AI1 = 0.77, p = 0.03), total granulocytes (LCC AI3 = 0.92 vs. AI1 = 0.82, p = 0.0008), immature granulocytes (LCC AI3 = 0.67 vs. AI1 = 0.38, p = 0.0014), and promyelocytes (LCC AI3 = 0.53 vs. AI1 = 0.16, p = 0.0008). Sensitivity for blast identification (n = 65 slides) improved from 97% (AI1), to 98% (AI2), to 100% (AI3), while blast specificity decreased from 24% (AI1), to 14% (AI2) to 12% (AI3). CONCLUSION Techcyte AI has shown significant improvement in cell identification over time and maintains high sensitivity for blast identification in malignant films.
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Affiliation(s)
- Lisa F Lincz
- Haematology Department, Calvary Mater Newcastle, Waratah, New South Wales, Australia
- School of Biomedical Sciences and Pharmacy, College of Health, Medicine and Wellbeing, University of Newcastle, Callaghan, New South Wales, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Karan Makhija
- Haematology Department, Calvary Mater Newcastle, Waratah, New South Wales, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Khaled Attalla
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
- New South Wales Health Pathology, John Hunter Hospital, New Lambton, New South Wales, Australia
| | - Fiona E Scorgie
- Haematology Department, Calvary Mater Newcastle, Waratah, New South Wales, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
| | - Anoop K Enjeti
- Haematology Department, Calvary Mater Newcastle, Waratah, New South Wales, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
- New South Wales Health Pathology, John Hunter Hospital, New Lambton, New South Wales, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing
| | - Ritam Prasad
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton, New South Wales, Australia
- New South Wales Health Pathology, John Hunter Hospital, New Lambton, New South Wales, Australia
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Mrosewski I, Dähn T, Hehde J, Kalinowski E, Lindner I, Meyer TM, Olschinsky-Szermer M, Pahl J, Puls M, Sachse K, Switkowski R. Indirectly determined reference intervals for automated white blood cell differentials of pediatric patients in Berlin and Brandenburg. Clin Chem Lab Med 2023; 61:1116-1122. [PMID: 36669090 DOI: 10.1515/cclm-2022-1265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/12/2023] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Establishing direct reference intervals for pediatric patients is a costly, challenging, and time-consuming enterprise. Indirectly established reference intervals can help to ameliorate this situation. It was our objective to establish population-specific reference intervals for automated white blood cell differentials via data mining and non-parametric percentile method. METHODS Blood counts and automated white blood cell differentials of patients aged 0 days to 18 years, performed from the 1st of January 2018 until the 30th of June 2022, were identified in our laboratory information system. Reference intervals were established in accordance with IFCC and CLSI recommendations as well as the propositions by Haeckel et al. RESULTS Initially, 47,173 blood counts on our SYSMEX XN-9000 were identified. 11,707 data sets were excluded, leaving 35,466 sample sets for analysis. Of these, 17,616 contained automated white blood cell differentials. Due to insufficient patient numbers, no reference intervals for automated white blood cell differentials could be established for children aged <7 months. In comparison to the corresponding reference intervals published by Herklotz et al., reference intervals determined by us showed relevant differences throughout all age groups. CONCLUSIONS The combination of non-parametric percentile method and the propositions by Haeckel et al. utilizing conscientious data mining appears to be potent alternative to direct reference interval determination.
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Affiliation(s)
- Ingo Mrosewski
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Tobias Dähn
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Jörg Hehde
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Elena Kalinowski
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Ilona Lindner
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Thea Maria Meyer
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | | | - Jana Pahl
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Monika Puls
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Kristin Sachse
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
| | - Rafael Switkowski
- Department of Laboratory Medicine, MDI Limbach Berlin GmbH, Berlin, Berlin, Germany
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Debus J, Dumont B, Kouadio BN, Zucman N, Dumont LM, Peynaud-Debayle E. A case of methaemoglobinaemia interference on the WDF channel on Sysmex XN-Series analysers. Clin Chem Lab Med 2021; 59:e285-e287. [PMID: 34142514 DOI: 10.1515/cclm-2020-1704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/11/2021] [Indexed: 11/15/2022]
Affiliation(s)
- Jérôme Debus
- Service d'Hématologie Biologique et Transfusion, Hôpital Louis-Mourier,Colombes, France
| | - Bénédicte Dumont
- Service d'Hématologie Biologique et Transfusion, Hôpital Louis-Mourier,Colombes, France
| | - Blaise Naomi Kouadio
- Service d'Hématologie Biologique et Transfusion, Hôpital Louis-Mourier,Colombes, France
| | - Noémie Zucman
- Service de Réanimation Médicale, Hôpital Louis-Mourier, Colombes, France.,Université de Paris, IAME, INSERM UMR 1137, Paris, France
| | - Louis-Marie Dumont
- Service de Réanimation Médicale, Hôpital Louis-Mourier, Colombes, France
| | - Edith Peynaud-Debayle
- Service d'Hématologie Biologique et Transfusion, Hôpital Louis-Mourier,Colombes, France
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Bale NM, Leon AE, Hawley DM. Differential house finch leukocyte profiles during experimental infection with Mycoplasma gallisepticum isolates of varying virulence. Avian Pathol 2020; 49:342-354. [PMID: 32270701 DOI: 10.1080/03079457.2020.1753652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Leukocyte differentials are a useful tool for assessing systemic immunological changes during pathogen infections, particularly for non-model species. To date, no study has explored how experimental infection with a common bacterial pathogen, Mycoplasma gallisepticum (MG), influences the course and strength of haematological changes in the natural songbird host, house finches. Here we experimentally inoculated house finches with MG isolates known to vary in virulence, and quantified the proportions of circulating leukocytes over the entirety of infection. First, we found significant temporal effects of MG infection on the proportions of most cell types, with strong increases in heterophil and monocyte proportions during infection. Marked decreases in lymphocyte proportions also occurred during infection, though these proportional changes may simply be driven by correlated increases in other leukocytes. Second, we found significant effects of isolate virulence, with the strongest changes in cell proportions occurring in birds inoculated with the higher virulence isolates, and almost no detectable changes relative to sham treatment groups in birds inoculated with the lowest virulence isolate. Finally, we found that variation in infection severity positively predicted the proportion of circulating heterophils and lymphocytes, but the strength of these correlations was dependent on isolate. Taken together, these results indicate strong haematological changes in house finches during MG infection, with markedly different responses to MG isolates of varying virulence. These results are consistent with the possibility that evolved virulence in house finch MG results in higher degrees of immune stimulation and associated immunopathology, with potential direct benefits for MG transmission. RESEARCH HIGHLIGHTS House finches show a marked pro-inflammatory response to M. gallisepticum infection. Virulent pathogen isolates produce stronger finch white blood cell responses. Among birds, stronger white blood cell responses are associated with higher infection severity.
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Affiliation(s)
- Natalie M Bale
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Ariel E Leon
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
| | - Dana M Hawley
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, USA
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