{
  "ptid_time": "073_S_5167_2013-04-26",
  "img_path": "/data/qiuhui/data/adni/images/073_S_5167/2013-04-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 10,829 mm³, 63.9% below the reference mean. With a Z-score of -1.52 (6.4th percentile), this represents moderate atrophy; hippocampal volume measures 8,290 mm³, 3.3% above the reference mean. With a Z-score of 0.33 (62.8th percentile), this represents normal volume ; whole brain volume measures 1,168,350 mm³, 3.0% above the reference mean. With a Z-score of 0.42 (66.3th percentile), this represents normal volume ; entorhinal cortex volume measures 4,797 mm³, 12.5% above the reference mean. With a Z-score of 0.87 (80.7th percentile), this represents normal volume ; fusiform gyrus volume measures 22,019 mm³, 10.6% above the reference mean. With a Z-score of 0.88 (81.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 21,477 mm³, 4.2% below the reference mean. With a Z-score of -0.34 (36.6th percentile), this represents normal volume . ",
  "text_data": "Age is 66.6 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. Medical history: Cardiovascular; Dermatologic-Connective Tissue; Musculoskeletal; Renal-Genitourinary; Smoking; Major Surgical Procedures. MMSE: 30.0. MoCA: 30.0. Logical Memory: 13.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.02 SUVR (normal ); Total tau: 258.80 pg/mL (normal ); Phosphorylated tau: 22.45 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The patient shows moderate ventricular atrophy but otherwise normal brain volumes, including the hippocampus and other key regions. Cognitive scores (MMSE, MoCA) are intact, and biomarkers (T-tau, P-tau, AV45) are normal, with no APOE4 risk allele.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-26T09:54:40.659876"
}