{
  "ptid_time": "032_S_2247_2013-10-25",
  "img_path": "/data/qiuhui/data/adni/images/032_S_2247/2013-10-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 33,613 mm³, 11.9% above the reference mean. With a Z-score of 0.28 (61.2th percentile), this represents normal volume ; hippocampal volume measures 7,815 mm³, 2.6% below the reference mean. With a Z-score of -0.26 (39.6th percentile), this represents normal volume ; whole brain volume measures 1,206,170 mm³, 6.3% above the reference mean. With a Z-score of 0.89 (81.4th percentile), this represents normal volume ; entorhinal cortex volume measures 3,771 mm³, 11.5% below the reference mean. With a Z-score of -0.80 (21.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,677 mm³, 1.2% below the reference mean. With a Z-score of -0.10 (46.1th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,491 mm³, 9.3% above the reference mean. With a Z-score of 0.76 (77.8th percentile), this represents normal volume . ",
  "text_data": "Age is 67.1 years. Gender is Male. Education: 19 years. MMSE: 27.0. MoCA: 25.0. Logical Memory: 18.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.03 SUVR (normal ); Amyloid beta: 1275.00 pg/mL (normal ); Total tau: 179.30 pg/mL (normal ); Phosphorylated tau: 15.30 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** All brain volumes (including hippocampal and entorhinal cortex) fall within normal ranges based on Z-scores and percentiles. Cognitive scores (MMSE 27, MoCA 25) are within normal limits, and biomarkers (Aβ, tau, AV45) are normal. No significant atrophy or pathological markers are present.  \n\n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** High",
  "timestamp": "2025-07-26T05:03:07.422480"
}