{
  "ptid_time": "128_S_0200_2012-02-17",
  "img_path": "/data/qiuhui/data/adni/images/128_S_0200/2012-02-17/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 14,602 mm³, 51.4% below the reference mean. With a Z-score of -1.22 (11.1th percentile), this represents mild atrophy; hippocampal volume measures 9,413 mm³, 17.3% above the reference mean. With a Z-score of 1.73 (95.8th percentile), this represents moderate enlargement; whole brain volume measures 1,219,860 mm³, 7.5% above the reference mean. With a Z-score of 1.06 (85.6th percentile), this represents mild enlargement; entorhinal cortex volume measures 4,199 mm³, 1.5% below the reference mean. With a Z-score of -0.10 (45.9th percentile), this represents normal volume ; fusiform gyrus volume measures 20,919 mm³, 5.1% above the reference mean. With a Z-score of 0.42 (66.3th percentile), this represents normal volume ; middle temporal gyrus volume measures 20,927 mm³, 6.6% below the reference mean. With a Z-score of -0.55 (29.3th percentile), this represents normal volume . ",
  "text_data": "Age is 67.4 years. Gender is Male. Education: 16 years. Handedness: Right. Race: Asian. Medical history: Head, Eyes, Ears, Nose and Throat; Cardiovascular; Hepatic; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 26.0. MoCA: 27.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.05 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular atrophy but otherwise normal to above-average volumes in key regions (hippocampus, whole brain, entorhinal cortex, fusiform gyrus). Cognitive scores (MMSE 26, MoCA 27) are within normal limits, and amyloid PET (AV45) is normal. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**  \n\n(No structural or biomarker evidence of neurodegeneration or amyloid pathology, and cognitive performance is intact.)",
  "timestamp": "2025-07-26T13:36:24.770572"
}