{
  "ptid_time": "024_S_4084_2011-09-16",
  "img_path": "/data/qiuhui/data/adni/images/024_S_4084/2011-09-16/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,490 mm³, 48.6% below the reference mean. With a Z-score of -1.22 (11.2th percentile), this represents mild atrophy; hippocampal volume measures 8,888 mm³, 15.7% above the reference mean. With a Z-score of 1.76 (96.1th percentile), this represents moderate enlargement; whole brain volume measures 1,098,220 mm³, 6.7% above the reference mean. With a Z-score of 0.84 (79.8th percentile), this represents normal volume ; entorhinal cortex volume measures 3,731 mm³, 4.2% below the reference mean. With a Z-score of -0.32 (37.4th percentile), this represents normal volume ; fusiform gyrus volume measures 18,010 mm³, 1.1% below the reference mean. With a Z-score of -0.12 (45.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 23,907 mm³, 16.5% above the reference mean. With a Z-score of 1.47 (92.9th percentile), this represents mild enlargement. ",
  "text_data": "Age is 68.4 years. Gender is Female. Education: 18 years. Handedness: Right. Race: White. Medical history: Musculoskeletal; Gastrointestinal; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 30.0. MoCA: 28.0. Logical Memory: 14.0. Laboratory findings: Hemoglobin: 11.20 (significant reduced); Total Bilirubin: 1.00 (profound elevated); Direct Bilirubin: 0.30 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ); Total tau: 237.60 pg/mL (normal ); Phosphorylated tau: 20.67 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The imaging shows mild ventricular atrophy but otherwise normal or even enlarged brain volumes (hippocampus, whole brain, middle temporal gyrus). Cognitive scores (MMSE 30, MoCA 28) are intact, and biomarkers (tau, AV45) are normal. No significant atrophy or biomarker evidence of neurodegeneration is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T03:17:16.617304"
}