99rnTcactMty &) was related to myocard@ I blood flow (x) from 0 to 6.1 mI/min/gby the
relationshipy= 0.83 X+ 0.18, r= 0.95, p= 0.0001. The ScmntigraphiCra@ oof …

METHODS Open-Chested Heart Preparation Ten mongrel dogs of both sexes weighing
12— 25kg were anesthetized with iv pentobarbital (30 mg/kg). Each dog was intubated and …

BACKGROUND 99mTc-Q12 is a new Tc (III) perfusion imaging agent that permits prompt
myocardial visualization in humans. We postulated that 99mTc-Q12 myocardial activity is …

Technetium 99m—Q12 is a new cationic myocardial perfusion imaging agent that produces
excellent images in human beings. The purpose of this study was to examine the separate …

Abstract McGoron AJ, Biniakiewicz D, Millard RW, et al. Myocardial kinetics of 99m
Technetium-Q agents: Studies in isolated cardiac myocyte, isolated perfused rat heart, and …

Methods In six control buffer perfused rat hearts, flow was maintained at 12 ml/min
throughout uptake and clearance. In six hearts (IR30), 30 min of no flow was followed by 60 …

Background This study was a direct comparison of the imaging characteristics of 99m Tc-
labeled Q12 (99m Tc-Q12) and 99m Tc-labeled Q3 (99m Tc-Q3) in the same patients …

Background. Technetium 99m-labeled bis (N-ethoxy, N-ethyl dithiocarbamato) nitrido
technetium (v)(99mTcN-NOET) is a new neutral cardiac perfusion imaging agent that has …

The mechanisms of myocardial extraction and retention of the new cationic lipophilic
radionuclide imaging agent 99rrTc-Q12 are cur rently unknown. We hypothesized that"" Tc …

The physiologic properties of new technetium-99m-labeled myocardial imaging agents (Tc-
99m sestamibi, an isonitrile; and Tc-99m teboroxime, a boronic acid adduct of technetium …