Use of Dual-Source Computed Tomography to Evaluate Renal Cortical Perfusion in Patients With Essential Hypertension Without Diabetes
| Autor: | Zhao-Qian Wang, Yunpeng Cheng, Zhi-qiang Yang, Yi-nong Jiang, Xi-Xia Sun, Chongfu Jia |
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| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Kidney Cortex Iohexol Renal cortex Contrast Media Renal function Perfusion scanning Blood volume Comorbidity Essential hypertension Young Adult Internal medicine Diabetes Mellitus medicine Humans Radiology Nuclear Medicine and imaging Four-Dimensional Computed Tomography Aged business.industry Age Factors Blood flow Middle Aged medicine.disease Pulse pressure Radiographic Image Enhancement medicine.anatomical_structure Hypertension Cardiology Female Radiology Essential Hypertension business Perfusion |
| Zdroj: | Journal of Computer Assisted Tomography. 39:473-478 |
| ISSN: | 0363-8715 |
| Popis: | OBJECTIVES To assess renal cortical perfusion parameter changes using computed tomography (CT) renal perfusion examination in patients with essential hypertension (EH), especially those with EH-related target organ damage (TOD), and to correlate renal perfusion parameters with clinical and laboratory data. METHODS Consecutive patients with EH (without exclusion criteria) and healthy controls underwent 128-slice dual-source CT perfusion imaging. Quantitative perfusion analysis of renal cortex parameters [blood flow (BF), blood volume, time to peak, and mean transit time] was performed. RESULTS Ninety-one participants (60 patients with EH, 31 healthy controls) underwent renal perfusion CT imaging, and 84 participants (92.3%) were eligible for perfusion analysis. The BF values were lower in patients with EH than that in controls. Blood flow was correlated with age (P < 0.01), duration of hypertension (P < 0.01), estimated glomerular filtration rate (eGFR; P < 0.01), pulse pressure (P < 0.05), and body mass index (BMI; P < 0.05). Duration of hypertension, eGFR, and BMI were independently associated with BF. No parameter differed between control subjects and those with EH but not. Blood flow was lower in patients with TOD than in control subjects (P < 0.01), but no other parameter differed. Blood flow was lower (P < 0.01) and mean transit time and time to peak were higher (P < 0.05) in the TOD than that in the non-TOD group. CONCLUSIONS Essential hypertension, especially EH-related TOD, alters renal cortical perfusion parameters, especially BF. Four-dimensional spiral CT renal perfusion examination showed that duration of hypertension, eGFR, and BMI were independently associated with decreased BF. |
| Databáze: | OpenAIRE |
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