{
  "ptid_time": "129_S_2332_2011-03-08",
  "img_path": "/data/qiuhui/data/adni/images/129_S_2332/2011-03-08/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 11,541 mm³, 58.9% below the reference mean. With a Z-score of -1.35 (8.9th percentile), this represents mild atrophy; hippocampal volume measures 7,368 mm³, 3.6% above the reference mean. With a Z-score of 0.33 (62.8th percentile), this represents normal volume ; whole brain volume measures 959,520 mm³, 1.6% below the reference mean. With a Z-score of -0.20 (42.3th percentile), this represents normal volume ; entorhinal cortex volume measures 3,077 mm³, 16.2% below the reference mean. With a Z-score of -1.00 (16.0th percentile), this represents normal volume ; fusiform gyrus volume measures 18,682 mm³, 9.8% above the reference mean. With a Z-score of 0.89 (81.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,162 mm³, 10.5% below the reference mean. With a Z-score of -0.91 (18.2th percentile), this represents normal volume . ",
  "text_data": "Age is 70.5 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Head, Eyes, Ears, Nose and Throat; Musculoskeletal; Endocrine-Metabolic; Renal-Genitourinary; Allergies or Drug Sensitivities; Smoking; Major Surgical Procedures. MMSE: 28.0. MoCA: 29.0. Logical Memory: 10.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.00 SUVR (normal ); Total tau: 302.80 pg/mL (normal ); Phosphorylated tau: 26.30 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain imaging shows mild ventricular atrophy but otherwise normal volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 28, MoCA 29) are within normal limits, and biomarkers (T-tau, P-tau, AV45) are unremarkable. No APOE4 risk allele is present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T14:11:53.546167"
}