Adrenal disease

Comparison of Different Diagnostic Criteria of 68Ga-Pentixafor PET/CT for the Classification of Primary Aldosteronism

J Clin Endocrinol MetabPublished Diagnostic accuracy study

Authors' conclusion

Both LI and visual analysis could be used for interpretation the results of 68Ga-Pentixafor PET/CT; nevertheless, visual analysis is more sensitive, and LI is more advantageous in specificity.

Study context

Population
Patients with primary aldosteronism (PA) who underwent 68Ga-Pentixafor PET/CT, with unilateral (unilateral PA (UPA)) or bilateral PA (BPA) diagnosed by surgery or AVS; tertiary hospital in China128 UPA, 80 BPA
Participants
208 patients
Comparison
Different criteria of 68Ga-Pentixafor PET/CT for PA subtyping: Lateralization index (LI), visual analysis, dominant side SUVmax, dominant side SUVmax adjusted by liver
Outcome
Accuracy (AUC, sensitivity, specificity) for diagnosing UPA
Methodological detailsretrospective, single-centre (tertiary hospital, China)
  • Retrospective
  • Single-centre (tertiary hospital, China)

Performance

As reported in the abstract

Diagnosis of UPA
Test or modelAUCYouden index (cutoff 1.50)Sensitivity (cutoff 1.50)Specificity (cutoff 1.50)Sensitivity (cutoff 1.65)Specificity (cutoff 1.65)SensitivitySpecificity
LI0.820.590.680.910.610.96
Visual analysis0.820.730.88
Dominant side of SUVmax0.72
Dominant side SUVmax adjusted by liver0.71

AUC

LI0.82
Visual analysis0.82
Dominant side of SUVmax0.72
Dominant side SUVmax adjusted by liver0.71

Youden index (cutoff 1.50)

LI0.59
Visual analysis— not stated in the abstract
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Sensitivity (cutoff 1.50)

LI0.68
Visual analysis— not stated in the abstract
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Specificity (cutoff 1.50)

LI0.91
Visual analysis— not stated in the abstract
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Sensitivity (cutoff 1.65)

LI0.61
Visual analysis— not stated in the abstract
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Specificity (cutoff 1.65)

LI0.96
Visual analysis— not stated in the abstract
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Sensitivity

LI— not stated in the abstract
Visual analysis0.73
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Specificity

LI— not stated in the abstract
Visual analysis0.88
Dominant side of SUVmax— not stated in the abstract
Dominant side SUVmax adjusted by liver— not stated in the abstract

Original publication

Comparison of Different Diagnostic Criteria of 68Ga-Pentixafor PET/CT for the Classification of Primary Aldosteronism. J Clin Endocrinol Metab. Published 29 November 2024. doi:10.1210/clinem/dgae747

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