{
  "ptid_time": "003_S_6260_2018-05-22",
  "img_path": "/data/qiuhui/data/adni/images/003_S_6260/2018-05-22/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 27,981 mm³, 6.8% below the reference mean. With a Z-score of -0.16 (43.6th percentile), this represents normal volume ; hippocampal volume measures 7,855 mm³, 2.1% below the reference mean. With a Z-score of -0.21 (41.5th percentile), this represents normal volume ; whole brain volume measures 1,114,090 mm³, 1.8% below the reference mean. With a Z-score of -0.26 (39.9th percentile), this represents normal volume ; entorhinal cortex volume measures 3,830 mm³, 10.2% below the reference mean. With a Z-score of -0.70 (24.1th percentile), this represents normal volume ; fusiform gyrus volume measures 19,094 mm³, 4.1% below the reference mean. With a Z-score of -0.34 (36.7th percentile), this represents normal volume ; middle temporal gyrus volume measures 24,439 mm³, 9.0% above the reference mean. With a Z-score of 0.75 (77.2th percentile), this represents normal volume . ",
  "text_data": "Age is 69.0 years. Gender is Male. Education: 20 years. Handedness: Right. Race: White. MMSE: 29.0. MoCA: 25.0. Logical Memory: 19.0. APOEε4 alleles: 0.0. Biomarker levels: Florbetapir (AV45): 1.15 SUVR (normal ). ",
  "true_diagnosis": "Diagnosis: CN.",
  "gpt_diagnosis": "Reasoning: The brain volume measurements are all within normal ranges, with only mild deviations from the reference mean. The MMSE score of 29 is normal, and the MoCA score of 25 is slightly below the typical cutoff of 26 but still within the range of normal cognition for age. There is no significant atrophy or biomarker evidence (APOE4-negative, normal AV45) to suggest neurodegeneration.  \nDiagnosis: CN (Cognitively Normal)  \nConfidence: High",
  "timestamp": "2025-07-25T21:00:33.264437"
}