{
  "ptid_time": "041_S_1418_2019-07-24",
  "img_path": "/data/qiuhui/data/adni/images/041_S_1418/2019-07-24/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 53,435 mm³, 9.3% above the reference mean. With a Z-score of 0.84 (80.1th percentile), this represents normal volume ; hippocampal volume measures 5,859 mm³, 8.0% below the reference mean. With a Z-score of -0.87 (19.1th percentile), this represents normal volume ; whole brain volume measures 1,003,280 mm³, 0.2% above the reference mean. With a Z-score of 0.03 (51.1th percentile), this represents normal volume ; entorhinal cortex volume measures 3,719 mm³, 5.9% below the reference mean. With a Z-score of -0.31 (38.0th percentile), this represents normal volume ; fusiform gyrus volume measures 16,394 mm³, 2.7% below the reference mean. With a Z-score of -0.32 (37.6th percentile), this represents normal volume ; middle temporal gyrus volume measures 17,911 mm³, 5.0% below the reference mean. With a Z-score of -0.77 (22.2th percentile), this represents normal volume . ",
  "text_data": "Age is 93.5 years. Gender is Male. Education: 12 years. MMSE: 29.0. MoCA: 26.0. Logical Memory: 14.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.91 SUVR (mild reduced). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The brain volume measurements are within normal ranges (Z-scores between -0.87 and +0.84), with no significant atrophy in key regions like the hippocampus or entorhinal cortex. Cognitive scores (MMSE 29, MoCA 26) are normal for age, and there is no APOE4 risk allele. Mild AV45 reduction suggests minimal amyloid burden, but not enough to indicate significant pathology.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **High**",
  "timestamp": "2025-07-26T07:07:09.059349"
}