Article Figures & Data
Figures
- FIGURE 1.
Anterior view of 123I-MIBG 3 h 50 min after injection.
- FIGURE 2.
Proper technique for drawing a 123I-MIBG dose.
- FIGURE 3.
Association of cardiac death with heart-to-mediastinum (H/M) ratio.
- FIGURE 4.
Heart-to-mediastinum (H/M) ratio obtained with 123I-MIBG.
- FIGURE 5.
Classic SPECT myocardial display of 123I-MIBG images after reconstruction.
Tables
Drug or class Examples Mechanism of interference (known or expected) Discontinuation before 123I-MIBG scan (d) Opioid Uptake inhibition 7–14 Cocaine Uptake inhibition 7–14 Tramadol Uptake inhibition 7–14 Tricyclic antidepressants Amitriptyline and derivatives, imipramine and derivatives, amoxapine, doxepin, others Uptake inhibition 7–21 Sympathicomimetics * Phenylpropanolamine, ephedrine, pseudoephedrine, phenylephrine, amphetamine, dopamine, isoproterenol, salbutamol, terbutaline, fenoterol, xylometazoline Depletion of granules 7–14 Antihypertensive or cardiovascular agents Labetalol Inhibition of uptake and depletion 21 Reserpine Depletion and transport inhibition 14 Bretylium, guanethidine Depletion and transport inhibition 14 Calcium channel blockers (nifedipine, nicardipine, amlodipine) Increased uptake and retention 14 Antipsychotics Phenothiazines † (chlorpromazine, promethazine, fluphenazine, others) Uptake inhibition 21–28 Thioxanthenes (maprotiline, trazodone) Uptake inhibition 21–28 Butyrophenones (droperidol, haloperidol) Uptake inhibition 21–28 Loxapine Uptake inhibition 7–21
