{
  "ptid_time": "126_S_2405_2012-04-25",
  "img_path": "/data/qiuhui/data/adni/images/126_S_2405/2012-04-25/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 26,173 mm³, 6.8% below the reference mean. With a Z-score of -0.15 (43.9th percentile), this represents normal volume ; hippocampal volume measures 7,086 mm³, 0.4% below the reference mean. With a Z-score of -0.04 (48.5th percentile), this represents normal volume ; whole brain volume measures 956,164 mm³, 1.9% below the reference mean. With a Z-score of -0.24 (40.6th percentile), this represents normal volume ; entorhinal cortex volume measures 3,328 mm³, 9.4% below the reference mean. With a Z-score of -0.58 (28.2th percentile), this represents normal volume ; fusiform gyrus volume measures 19,523 mm³, 14.8% above the reference mean. With a Z-score of 1.34 (91.0th percentile), this represents mild enlargement; middle temporal gyrus volume measures 17,830 mm³, 7.0% below the reference mean. With a Z-score of -0.61 (27.2th percentile), this represents normal volume . ",
  "text_data": "Age is 72.1 years. Gender is Female. Education: 13 years. MMSE: 26.0. MoCA: 24.0. APOEε4 alleles: 0.0. ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are largely within normal ranges, with only mild deviations (e.g., entorhinal cortex slightly below mean, fusiform gyrus mildly enlarged). Cognitive scores (MMSE 26, MoCA 24) are borderline but not strongly indicative of impairment. No APOE4 risk allele is present.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: Medium (due to borderline cognitive scores, but structural findings are reassuring)",
  "timestamp": "2025-07-26T12:44:08.461735"
}