Japanese
Title平衡時相RI心血管造影法と同時右室圧測定から求めた右室圧 - 容積ループ
Subtitle研究速報
Authors渡辺佐知郎*, 安江隆夫*, 茜部寛*, 石黒源之*, 森甫**, 後藤明***, 奥孝行***, 八木安生****, 大島貞男****, 細羽実*****, 空本純一*****, 若林重興*****
Authors(kana)
Organization*県立岐阜病院循環器科, **第1内科, ***放射線科, ****岐阜大学第2内科, *****島津製作所
Journal核医学
Volume18
Number1
Page75-80
Year/Month1981/1
Article報告
Publisher日本核医学会
Abstract「I. 緒言」 multigated methodによるequilibrium radionuclide angiocardiography (以下RI ACGと略す) は有力な心機能検査として, 左心系のみならず右心系にも適用されるに至った. しかしその情報には圧データが含まれないため, RI ACGに際し同時にRIデータと圧データを収得し両者を同時に分析することは更に有力な機能の評価を得ることになる. 著者らはequilibrium RI ACGとon line minicomputer systemを組み合せ, 心臓カテーテルによる圧データをRIデータと共にminicomputerに収録処理することにより右室の圧-容積ループ (RV P-V loop) を求め右室の各仕事量を計算した.
Practice臨床医学：一般
KeywordsRight Ventricular Ejection Fraction, Right Ventricular Volume, Pressure-Volume Loop.
English
TitleRV Function Evaluation Using Volume-pressure Loop by ECG-Gated Equilibrium Radionuclide Anglography and Simultaneously Acquired RV Pressure Data
Subtitle
AuthorsSachiro WATANABE*, Takao YASUE*, Hiroshi AKANABE*, Motoyuki ISHIGURO*, Hazime MORI**, Akira GOTO***, Takayasu OKU***, Yasuo YAGI****, Sadao OHSHIMA****, Minoru HOSOBA*****, Junichi SORAMOTO, Shigeoki WAKABAYASHI*****
Authors(kana)
Organization*Division of Cardiology, Prefectual Gifu Hospital, **First Division of Internal Medicine, Prefectual Gifu Hospital, ***Division of Radiology, Prefectual Gifu Hospital, ****Second Division of Internal Medicine, Gifu University, *****Shimazu Corporation
JournalThe Japanese Journal of nuclear medicine
Volume18
Number1
Page75-80
Year/Month1981/1
ArticleReport
PublisherTHE JAPANESE SOCIETY OF NUCLEAR MEDICINE
Abstract[Summary] This study was undertaken to evaluate the right ventricular (RV) function in various cardiac disease using volume-pressure relationship which was produced from ECG-gated equilibrium (EQ) radionuclide angiography and RV pressure data measured with Swan-Gantz catheter. Computerized methods for LIST mode data acquisition were developed to collect the data from gamma camera, ECG wave and RV pressure simultaneously. ECG-gated pool images summing about 200 beats and average pressure curve spanning a complete cardiac cycle were generated from LIST mode data which were acquered in the LAO 30°view with 3-min collection period using 15 mci Tc-99m HSA. A time-activity curve (TAC) of the RV activity over the cardiac cycle and RV ejection fraction (EF) were calculated chosing RV ROI for end diastole (ED) image after background correction. In order to determine ROI without inter-observer variation, RV ROI could be selected on both ED and absolute value image of |ED-ES| that emphasised the changing part in RV and right atrium. RV volume curve was obtained calibrating TAC with ED volume calculated from the relation of EF and cardiac output measured by thermodilution method. From pressure curve and volume curve, volume-pressure loop was created. Moreover, from flow curve (dv/dt) , volume curve and pressure curve volume-flow (dv/dt) loop and pressure-flow (dv/dt) loop were created. With this EQ method using simultaneously acquired RV pressure data we obtained accurate RVEF, volume curve, RV works and volumepressure relation-ship repeatedly that would be rarely available by traditional contrast angiography.
PracticeClinical medicine
KeywordsRight Ventricular Ejection Fraction, Right Ventricular Volume, Pressure-Volume Loop.

【全文PDF】