{
  "ptid_time": "941_S_4187_2015-08-21",
  "img_path": "/data/qiuhui/data/adni/images/941_S_4187/2015-08-21/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 15,770 mm³, 47.5% below the reference mean. With a Z-score of -1.13 (13.0th percentile), this represents mild atrophy; hippocampal volume measures 8,734 mm³, 8.8% above the reference mean. With a Z-score of 0.88 (81.1th percentile), this represents normal volume ; whole brain volume measures 1,290,260 mm³, 13.7% above the reference mean. With a Z-score of 1.94 (97.4th percentile), this represents moderate enlargement; entorhinal cortex volume measures 4,452 mm³, 4.4% above the reference mean. With a Z-score of 0.31 (62.1th percentile), this represents normal volume ; fusiform gyrus volume measures 25,975 mm³, 30.5% above the reference mean. With a Z-score of 2.53 (99.4th percentile), this represents significant enlargement; middle temporal gyrus volume measures 25,092 mm³, 12.0% above the reference mean. With a Z-score of 0.99 (83.8th percentile), this represents normal volume . ",
  "text_data": "Age is 66.0 years. Gender is Male. Education: 16 years. MMSE: 27.0. MoCA: 26.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.04 SUVR (normal ); Amyloid beta: 898.50 pg/mL (normal ); Total tau: 225.50 pg/mL (normal ); Phosphorylated tau: 19.94 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mild ventricular atrophy but otherwise normal or even enlarged volumes in key regions (hippocampus, entorhinal cortex, fusiform gyrus, middle temporal gyrus). Cognitive scores (MMSE 27, MoCA 26) are within normal range, and biomarkers (Aβ, tau, AV45) are normal, with no APOE4 risk allele.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T17:35:37.090816"
}