{
  "ptid_time": "003_S_1122_2019-05-07",
  "img_path": "/data/qiuhui/data/adni/images/003_S_1122/2019-05-07/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 29,980 mm³, 18.9% below the reference mean. With a Z-score of -0.51 (30.5th percentile), this represents normal volume ; hippocampal volume measures 5,916 mm³, 8.9% below the reference mean. With a Z-score of -0.71 (23.7th percentile), this represents normal volume ; whole brain volume measures 729,873 mm³, 21.4% below the reference mean. With a Z-score of -2.56 (0.5th percentile), this represents significant atrophy; entorhinal cortex volume measures 2,186 mm³, 36.9% below the reference mean. With a Z-score of -1.99 (2.3th percentile), this represents moderate atrophy; fusiform gyrus volume measures 11,763 mm³, 27.0% below the reference mean. With a Z-score of -2.03 (2.1th percentile), this represents significant atrophy; middle temporal gyrus volume measures 15,393 mm³, 14.6% below the reference mean. With a Z-score of -1.30 (9.7th percentile), this represents mild atrophy. ",
  "text_data": "Age is 89.1 years. Gender is Female. Education: 14 years. MMSE: 28.0. MoCA: 19.0. Logical Memory: 9.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The patient shows significant atrophy in whole brain volume, entorhinal cortex, and fusiform gyrus, along with mild atrophy in the middle temporal gyrus, which are regions commonly affected in Alzheimer's disease. Despite normal hippocampal and ventricular volumes, the cognitive scores (MMSE 28, MoCA 19) suggest a discrepancy, with MoCA indicating possible cognitive impairment.  \nDiagnosis: MCI (Mild Cognitive Impairment)  \nConfidence: Medium",
  "timestamp": "2025-07-25T20:47:57.420385"
}