{
  "ptid_time": "016_S_4097_2011-07-05",
  "img_path": "/data/qiuhui/data/adni/images/016_S_4097/2011-07-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 9,745 mm³, 65.3% below the reference mean. With a Z-score of -1.49 (6.7th percentile), this represents mild atrophy; hippocampal volume measures 7,632 mm³, 7.3% above the reference mean. With a Z-score of 0.67 (74.8th percentile), this represents normal volume ; whole brain volume measures 985,159 mm³, 1.1% above the reference mean. With a Z-score of 0.14 (55.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,262 mm³, 11.2% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume ; fusiform gyrus volume measures 15,366 mm³, 9.7% below the reference mean. With a Z-score of -0.88 (18.9th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,891 mm³, 3.8% above the reference mean. With a Z-score of 0.33 (62.8th percentile), this represents normal volume . ",
  "text_data": "Age is 70.8 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Neurologic; Gastrointestinal. MMSE: 30.0. MoCA: 28.0. Logical Memory: 11.0. Laboratory findings: Serum Glucose: 126.00 (significant elevated); Triglycerides (GPO): 286.00 (significant elevated). APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.08 SUVR (normal ); Amyloid beta: 801.70 pg/mL (normal ); Total tau: 241.50 pg/mL (normal ); Phosphorylated tau: 21.89 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, etc.). Cognitive testing (MMSE 30, MoCA 28) is intact, and biomarkers (Aβ, tau, AV45) are normal, with no APOE4 risk allele.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T00:24:40.976275"
}