{
  "ptid_time": "029_S_4585_2018-03-26",
  "img_path": "/data/qiuhui/data/adni/images/029_S_4585/2018-03-26/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,493 mm³, 28.6% below the reference mean. With a Z-score of -0.69 (24.6th percentile), this represents normal volume ; hippocampal volume measures 7,660 mm³, 1.3% above the reference mean. With a Z-score of 0.13 (55.2th percentile), this represents normal volume ; whole brain volume measures 1,036,100 mm³, 4.0% below the reference mean. With a Z-score of -0.52 (30.1th percentile), this represents normal volume ; entorhinal cortex volume measures 4,336 mm³, 5.7% above the reference mean. With a Z-score of 0.39 (65.1th percentile), this represents normal volume ; fusiform gyrus volume measures 16,348 mm³, 13.2% below the reference mean. With a Z-score of -1.13 (13.0th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,522 mm³, 0.9% above the reference mean. With a Z-score of 0.08 (53.1th percentile), this represents normal volume . ",
  "text_data": "Age is 70.8 years. Gender is Male. Education: 13 years. MMSE: 29.0. MoCA: 25.0. Logical Memory: 11.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements show mostly normal values, with only mild atrophy in the fusiform gyrus. Cognitive scores (MMSE 29, MoCA 25) are within normal to borderline range, and amyloid PET (AV45) is normal. APOE4 carrier status is present but not strongly indicative of pathology given the other findings.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to borderline MoCA and mild fusiform atrophy, but overall normal biomarkers and high MMSE)",
  "timestamp": "2025-07-26T04:30:53.403154"
}