| A study of ventricular contraction sequence in complete right bundle branch block by phase analysis. | |
| | |
MedLine Citation:
|
PMID: 1863519 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Twenty-four patients with complete right bundle branch block (CRBBB) combined with and without left axis deviation (LAD) on ECG, were compared with 17 normal subjects to evaluate the right ventricular contraction sequence and pattern in detail. Blood pool scintigrams were obtained in the left anterior oblique projection, and these images were analyzed by first component Fourier harmonics. In the normal subjects, the phase value distribution representing the pattern of ventricular contraction was almost homogeneous in both the right and left ventricles (RV & LV). In the CRBBB patients without LAD, the phase images showed apparent phase delay in the right ventricle. In the CRBBB patients with LAD, the phase images showed many different contraction patterns varying from normal to RV phase delay, owing to the effects of the hemi-block. Quantitative analysis of the absolute values, showed that the mean (RV-LV) value was 6.6 +/- 8.4 msec in the normal subjects. In the CRBBB patients without LAD, the duration of the QRS complex correlated with the mean (RV-LV) value, whereas no difference was observed between the duration of the QRS complex and the standard deviation of the right ventricle. Using phase analysis the degree of the RBBB can be determined from the phase images, and can be quantitatively analyzed as in electrical studies. |
| | |
Authors:
|
T Takeda; H Toyama; K Iida; T Masuoka; R Ajisaka; K Kuga; M Satoh; S Sugahara; W Jin; N Ishikawa |
Related Documents
:
|
17974699 - Assessment of left ventricular mass and volumes by three-dimensional echocardiography i... 8771029 - Mr image segmentation using vector decomposition and probability techniques: a general ... 14691609 - Effects of photon attenuation on the determination of cardiac volumes from reconstructe... 15569889 - Hippocampal volume in adult burn patients with and without posttraumatic stress disorder. 10350309 - Single breath-hold left ventricular volume measurement by 0.3-sec turbo fast low-angle ... 19108659 - Orbitofrontal cortex volumes in medication naïve children with major depressive disord... 21493789 - Lung nodules: improved detection with software that suppresses the rib and clavicle on ... 18098299 - Optical analysis of computed tomography images of the liver predicts fibrosis stage and... 15359509 - Ultrasonographic evaluation of knee joint cartilage in rheumatoid arthritis patients. |
Publication Detail:
|
Type: Journal Article |
Journal Detail:
|
Title: Annals of nuclear medicine Volume: 5 ISSN: 0914-7187 ISO Abbreviation: Ann Nucl Med Publication Date: 1991 Mar |
Date Detail:
|
Created Date: 1991-09-12 Completed Date: 1991-09-12 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 8913398 Medline TA: Ann Nucl Med Country: JAPAN |
Other Details:
|
Languages: eng Pagination: 19-27 Citation Subset: IM |
Affiliation:
|
Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Aged Bundle-Branch Block / physiopathology, radionuclide imaging* Female Fourier Analysis Humans Male Middle Aged Myocardial Contraction / physiology* Radionuclide Ventriculography* Ventricular Function, Right / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Availability and limitations of thallium-201 myocardial SPECT quantitative analysis: assessment as d...
Next Document: The role of gallium-67 imaging in the detection of foci in recent cases of fever of unknown origin.