{
  "ptid_time": "005_S_4168_2013-09-12",
  "img_path": "/data/qiuhui/data/adni/images/005_S_4168/2013-09-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 37,520 mm³, 20.2% below the reference mean. With a Z-score of -0.59 (27.9th percentile), this represents normal volume ; hippocampal volume measures 7,331 mm³, 5.2% above the reference mean. With a Z-score of 0.45 (67.4th percentile), this represents normal volume ; whole brain volume measures 1,044,660 mm³, 1.5% above the reference mean. With a Z-score of 0.20 (57.8th percentile), this represents normal volume ; entorhinal cortex volume measures 5,361 mm³, 35.1% above the reference mean. With a Z-score of 2.30 (98.9th percentile), this represents significant enlargement; fusiform gyrus volume measures 17,610 mm³, 2.5% below the reference mean. With a Z-score of -0.22 (41.4th percentile), this represents normal volume ; middle temporal gyrus volume measures 19,432 mm³, 3.7% below the reference mean. With a Z-score of -0.33 (37.1th percentile), this represents normal volume . ",
  "text_data": "Age is 84.2 years. Gender is Male. Education: 17 years. MMSE: 27.0. MoCA: 27.0. Logical Memory: 13.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.09 SUVR (normal ); Amyloid beta: 769.70 pg/mL (normal ); Total tau: 243.70 pg/mL (normal ); Phosphorylated tau: 22.62 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (hippocampal, whole brain, fusiform gyrus, middle temporal gyrus) are within normal ranges, with the entorhinal cortex showing significant enlargement (likely compensatory or non-pathological). Biomarkers (Aβ, T-tau, P-tau, AV45) are normal, and cognitive scores (MMSE, MoCA) are intact for age.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-25T21:20:05.534302"
}