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Table 3 Comparison of diagnostic performance of different dd-cfDNA thresholds for detecting liver graft injury

From: Advances and challenges in the application of donor-derived cell-free DNA for diagnosis and treatment in liver transplantation: a narrative review

Study design and sample size

Year

Sample types

Assay method

Injury types

Thresholds

ROC-AUC

Sensitivity

Specificity

Reference

Multi-center Prospective (n = 107)

2017

Plasma

dd-PCR

AR

10.00%

0.97

90.30%

92.90%

[5]

Single-center Prospective (n = 40)

2019

Plasma

dd-PCR

AR

898 cp/mL

0.99

83.30%

100.00%

[58]

Single-center Prospective (n = 49)

2021

Plasma

NGS

Pediatric Rejection

28.70%

0.88

72.70%

94.70%

[45]

Single-center Retrospective (n = 27)

2022

Plasma

qPCR

AR

13.80%

0.77

85.70%

63.30%

[56]

Single-center Prospective (n = 51)

2022

Plasma

dd-PCR

TCMR

33.50%

0.73

NA

97.00%

[42]

Multi-center Prospective (n = 219)

2022

Plasma

NGS

AR

5.30%

0.95

87.00%

NA

[2]

  1. Thresholds are assay-dependent and cannot be directly compared across studies due to methodological differences
  2. AR Acute Rejection, qPCR Quantitative polymerase chain reaction, dd-PCR droplet digital PCR, NGS Next-generation sequencing, TCMR T-cell-mediated rejection, NA not available, ROC-AUC Receiver Operating Characteristic—Area Under the Curve