{
  "ptid_time": "003_S_0908_2006-09-12",
  "img_path": "/data/qiuhui/data/adni/images/003_S_0908/2006-09-12/t1.nii.gz",
  "img_finding": "Image findings: ventricular volume measures 48,734 mm³, 118.2% above the reference mean. With a Z-score of 2.96 (99.8th percentile), this represents significant enlargement; hippocampal volume measures 7,534 mm³, 2.0% below the reference mean. With a Z-score of -0.22 (41.3th percentile), this represents normal volume ; whole brain volume measures 1,069,240 mm³, 3.9% above the reference mean. With a Z-score of 0.48 (68.6th percentile), this represents normal volume ; entorhinal cortex volume measures 5,038 mm³, 29.4% above the reference mean. With a Z-score of 2.28 (98.9th percentile), this represents significant enlargement; fusiform gyrus volume measures 15,787 mm³, 13.3% below the reference mean. With a Z-score of -1.50 (6.7th percentile), this represents mild atrophy; middle temporal gyrus volume measures 20,138 mm³, 1.9% below the reference mean. With a Z-score of -0.17 (43.4th percentile), this represents normal volume . ",
  "text_data": "Age is 62.9 years. Gender is Female. Education: 16 years. Handedness: Right. Race: White. Medical history: Psychiatric; Neurologic; Head, Eyes, Ears, Nose and Throat; Cardiovascular; Respiratory; Endocrine-Metabolic; Gastrointestinal; Renal-Genitourinary; Allergies or Drug Sensitivities; Major Surgical Procedures. MMSE: 29.0. Logical Memory: 8.0. APOEε4 alleles: 0.0. Biomarker levels: Amyloid beta: 1314.00 pg/mL (normal ); Total tau: 156.90 pg/mL (mild reduced); Phosphorylated tau: 14.64 pg/mL (normal ). ",
  "true_diagnosis": "Diagnosis: MCI.",
  "gpt_diagnosis": "**Reasoning:** The data shows significant ventricular enlargement (Z-score 2.96) and entorhinal cortex enlargement (Z-score 2.28), along with mild fusiform gyrus atrophy (Z-score -1.50). However, hippocampal volume is normal, Aβ is normal, and MMSE is intact (29/30). The lack of significant cognitive impairment and normal biomarkers suggest no dementia.  \n**Diagnosis:** CN (Cognitively Normal)  \n**Confidence:** Medium (due to conflicting structural findings but preserved cognition and biomarkers)",
  "timestamp": "2025-07-25T20:38:47.376473"
}