{
  "ptid_time": "002_S_1155_2012-12-20",
  "img_path": "/data/qiuhui/data/adni/images/002_S_1155/2012-12-20/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 47,925 mm³, 59.6% above the reference mean. With a Z-score of 1.42 (92.2th percentile), this represents mild enlargement; hippocampal volume measures 8,315 mm³, 3.6% above the reference mean. With a Z-score of 0.36 (64.0th percentile), this represents normal volume ; whole brain volume measures 1,133,560 mm³, 0.1% below the reference mean. With a Z-score of -0.01 (49.5th percentile), this represents normal volume ; entorhinal cortex volume measures 3,531 mm³, 17.2% below the reference mean. With a Z-score of -1.19 (11.7th percentile), this represents mild atrophy; fusiform gyrus volume measures 21,718 mm³, 9.1% above the reference mean. With a Z-score of 0.76 (77.5th percentile), this represents normal volume ; middle temporal gyrus volume measures 22,577 mm³, 0.7% above the reference mean. With a Z-score of 0.06 (52.4th percentile), this represents normal volume . ",
  "text_data": "Age is 63.8 years. Gender is Male. Education: 20 years. MMSE: 30.0. MoCA: 27.0. Logical Memory: 11.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 0.99 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows mild ventricular enlargement and mild entorhinal cortex atrophy, but hippocampal and whole brain volumes are normal. Cognitive scores (MMSE 30, MoCA 27) are within normal ranges, and amyloid PET (AV45) is negative. No APOE4 risk allele is present.  \n\n**Diagnosis:** **CN (Cognitively Normal)**  \n**Confidence:** **Medium** (While structural changes are present, cognitive performance and lack of amyloid pathology suggest no significant impairment. However, entorhinal atrophy may warrant monitoring.)",
  "timestamp": "2025-07-25T20:11:41.873435"
}