{
  "ptid_time": "035_S_4114_2013-07-05",
  "img_path": "/data/qiuhui/data/adni/images/035_S_4114/2013-07-05/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 24,492 mm³, 31.5% above the reference mean. With a Z-score of 0.90 (81.6th percentile), this represents normal volume ; hippocampal volume measures 7,412 mm³, 5.1% below the reference mean. With a Z-score of -0.71 (24.0th percentile), this represents normal volume ; whole brain volume measures 1,053,520 mm³, 1.2% above the reference mean. With a Z-score of 0.15 (55.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,712 mm³, 0.4% above the reference mean. With a Z-score of 0.04 (51.4th percentile), this represents normal volume ; fusiform gyrus volume measures 16,194 mm³, 12.1% below the reference mean. With a Z-score of -1.10 (13.5th percentile), this represents mild atrophy; middle temporal gyrus volume measures 21,988 mm³, 7.1% above the reference mean. With a Z-score of 0.58 (72.1th percentile), this represents normal volume . ",
  "text_data": "Age is 57.0 years. Gender is Female. Education: 14 years. MMSE: 27.0. MoCA: 24.0. Logical Memory: 0.0. APOEε4 alleles: 1.0. Biomarker levels: Florbetapir (AV45): 1.19 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: AD.",
  "gpt_diagnosis": "**Reasoning:** The brain volume data shows mostly normal measurements, with mild atrophy only in the fusiform gyrus. Cognitive scores (MMSE 27, MoCA 24) are slightly below optimal but still within the normal range for age. APOE4 carrier status and normal AV45 (amyloid PET) suggest no significant amyloid pathology at this time.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to mild fusiform atrophy and borderline MoCA, but overall normal biomarkers and cognitive function)",
  "timestamp": "2025-07-26T05:55:01.091218"
}