renovascular hypertension
Item
healthy volunteers or patients with significant clinical suspicion of renovascular hypertension.
boolean
C0020545 (UMLS CUI [1])
informed consent
Item
subjects able to understand the informed consent for this study.
boolean
C0021430 (UMLS CUI [1])
breath holding
Item
subjects must be able to hold their breath for 20 second intervals.
boolean
C0235744 (UMLS CUI [1])
health status
Item
patients must be clinically stable and be judged by their physician able to tolerate the mr study of 1.5-2 hour duration.
boolean
C0018759 (UMLS CUI [1])
mri contraindication
Item
any contraindication for mr study including: pacemaker or other implanted electronic device; cochlear implants; metal in the eye; embedded shrapnel fragments; cerebral aneurysm clips; or medical infusion pumps.
boolean
C0024485 (UMLS CUI [1,1])
C1301624 (UMLS CUI [1,2])
hypersensitivity
Item
allergy to gadolinium, iodinated contrast media, aceis, or sulphur-containing medication.
boolean
C0020517 (UMLS CUI [1])
hematocrit
Item
patients have a hematocrit at or below 30. severe anemia may predispose to hypotension after captopril.
boolean
C0518014 (UMLS CUI [1])
hyperkalemia
Item
patients with hyperkalemia (plasma potassium: above 5.0 mmol/l), because of the risk of arrhythmia.
boolean
C0020461 (UMLS CUI [1])
comorbidity
Item
clinically unstable patients and those unable to tolerate a 1-2 hour mr study. examples of medical conditions that would lead to exclusion include unstable angina, dyspnea at rest, severe pain at rest, or severe back pain.
boolean
C0009488 (UMLS CUI [1])
pregnancy
Item
pregnancy.
boolean
C0032961 (UMLS CUI [1])
lactation
Item
nursing mothers.
boolean
C0006147 (UMLS CUI [1])
claustrophobia
Item
subjects who are claustrophobic and are unable to tolerate mr imaging.
boolean
C0008909 (UMLS CUI [1])
creatinine
Item
patients with a serum creatinine concentration above 4mg/dl.
boolean
C0201976 (UMLS CUI [1])
bilateral renal stents
Item
bilateral renal stents.
boolean
C1322812 (UMLS CUI [1,1])
C0238767 (UMLS CUI [1,2])
dipstick urine test, bp, bun, creatinine
Item
healthy subjects must not have an abnormality detected on dipstick urinalysis, or a systolic bp above 140 mmhg or a diastolic bp above 90 mmhg on screening examination or an abnormal bun or creatinine level in the blood.
boolean
C0430370 (UMLS CUI [1])
C0005823 (UMLS CUI [2])
C0005845 (UMLS CUI [3])
C0201976 (UMLS CUI [4])