Diminishing the impact of the partial volume effect in cardiac SPECT
... Finally, the solid circles represent the summed counts of all the structures taking into consideration the combined effects of the loss of counts to outside the structure and spillover from adjacent structures. As observed, the impact on the apparent concentration 共height兲 is more significant for th ...
... Finally, the solid circles represent the summed counts of all the structures taking into consideration the combined effects of the loss of counts to outside the structure and spillover from adjacent structures. As observed, the impact on the apparent concentration 共height兲 is more significant for th ...
Correlation Between Echocardiographic Left Ventricular Mass Index
... First Affiliated Hospital of Fujian Medical University. Exclusion criteria were patients with: a) chronic cor pulmonale; b) myocardial infarction; c) valvular heart disease; d) bundle branch blocks; e) pre-excitation syndrome; or f) atrial fibrillation or atrial flutter based on clinical history and ...
... First Affiliated Hospital of Fujian Medical University. Exclusion criteria were patients with: a) chronic cor pulmonale; b) myocardial infarction; c) valvular heart disease; d) bundle branch blocks; e) pre-excitation syndrome; or f) atrial fibrillation or atrial flutter based on clinical history and ...
TRICUSPID ATRESIA BY DR ANKUR
... life: infant will be cyanosed • As DA constricts further PBF falls-oxygen falls-anaerobic metabolism - metabolic acidemia • Po2 if drop below 35 mmHg: reopen ductus so improving pulmonary blood flow but eventually ductus closesmechanisms not known. ...
... life: infant will be cyanosed • As DA constricts further PBF falls-oxygen falls-anaerobic metabolism - metabolic acidemia • Po2 if drop below 35 mmHg: reopen ductus so improving pulmonary blood flow but eventually ductus closesmechanisms not known. ...
Effect of Bipolar Electrode Spacing on Phrenic Nerve Stimulation
... dictates that the LV cathode be at least 20 to 30 mm from the TPNE. To overcome this limitation, a quadripolar S-shaped LV lead that spans a length of ≈50 mm from the tip to the proximal electrode and allows 10 pacing configurations has been developed.16 The preliminary short-term experience with th ...
... dictates that the LV cathode be at least 20 to 30 mm from the TPNE. To overcome this limitation, a quadripolar S-shaped LV lead that spans a length of ≈50 mm from the tip to the proximal electrode and allows 10 pacing configurations has been developed.16 The preliminary short-term experience with th ...
Student Lesson (English)
... Sometimes you inherit health problems. If you inherited a health problem from someone in your family, it is considered genetic. If your health problems develop because of something you do—like smoking or poor exercise habits—then it is considered environmental. Cardiovascular disease can be influenc ...
... Sometimes you inherit health problems. If you inherited a health problem from someone in your family, it is considered genetic. If your health problems develop because of something you do—like smoking or poor exercise habits—then it is considered environmental. Cardiovascular disease can be influenc ...
The Assessment of Left Ventricular Ejection Fraction in Patients with
... these shorter sample times increased the difference in radioactivity between systole and diastole, so increasing ejection fraction. However, for routine use curve-fitting techniques with computer facilities would then be needed. Increasing the dose of radioactivity injected would not increase the co ...
... these shorter sample times increased the difference in radioactivity between systole and diastole, so increasing ejection fraction. However, for routine use curve-fitting techniques with computer facilities would then be needed. Increasing the dose of radioactivity injected would not increase the co ...
Intermediate Outcome of Transcatheter Closure of Secundum Atrial
... had increased from 33.23±5.393 mm to 36.27±6.75 mm(P=0.001). Mean PAP decreased from 18.37±4.796 mmHg to 14.77±4.75 mmHg (P=0.022). RVSP decreased from 28.9±4.425 mmHg to 15.83±4.17 mmHg (P=0.000). Regarding electrocardiography, the P wave duration decreased from 107.13±19.62 ms to 77±14.18 ms (P=0. ...
... had increased from 33.23±5.393 mm to 36.27±6.75 mm(P=0.001). Mean PAP decreased from 18.37±4.796 mmHg to 14.77±4.75 mmHg (P=0.022). RVSP decreased from 28.9±4.425 mmHg to 15.83±4.17 mmHg (P=0.000). Regarding electrocardiography, the P wave duration decreased from 107.13±19.62 ms to 77±14.18 ms (P=0. ...
Statement on cardiopulmonary exercise testing in chronic heart
... the pulmonary, cardiovascular, haematopoietic, neuropsychological, and skeletal muscle systems. This information cannot be obtained through investigation of the individual organ systems in isolation. The non-invasive, dynamic physiological overview permits the evaluation of both submaximal and peak ...
... the pulmonary, cardiovascular, haematopoietic, neuropsychological, and skeletal muscle systems. This information cannot be obtained through investigation of the individual organ systems in isolation. The non-invasive, dynamic physiological overview permits the evaluation of both submaximal and peak ...
Indian Pacing and Electrophysiology Journal - Antzelevitch
... window and were excluded from the final analysis. Over the 6 months follow up, 2 patients died. One patient had a haemorrhagic stroke and the other having documented coronary artery disease died suddenly. Two patients were lost to follow up after discharge but postal inquiries showed that they had n ...
... window and were excluded from the final analysis. Over the 6 months follow up, 2 patients died. One patient had a haemorrhagic stroke and the other having documented coronary artery disease died suddenly. Two patients were lost to follow up after discharge but postal inquiries showed that they had n ...
Diastolic Heart Failure — Abnormalities in Active
... of the echocardiographic measurements. The increment in left ventricular diastolic volume that occurred between the opening of the mitral valve and the point of minimal diastolic pressure was calculated first by determining, with the use of Doppler echocardiographic techniques, the fraction of the t ...
... of the echocardiographic measurements. The increment in left ventricular diastolic volume that occurred between the opening of the mitral valve and the point of minimal diastolic pressure was calculated first by determining, with the use of Doppler echocardiographic techniques, the fraction of the t ...
Cardiogenesis in the bovine to 35 somites - K-REx
... anterior to the fore gut that were continuous with the endocardial cells and were interpreted to be the vasofactive cells of the first aortic arch. The yolk sac contained numerous endothelial lined blood vessels in its wall, some of which extended as lines of vasofactive cells toward the ...
... anterior to the fore gut that were continuous with the endocardial cells and were interpreted to be the vasofactive cells of the first aortic arch. The yolk sac contained numerous endothelial lined blood vessels in its wall, some of which extended as lines of vasofactive cells toward the ...
- The Journal of Heart and Lung Transplantation
... Investigators have recently shown the prognostic significance of the ventilation to carbon dioxide (VE/ VCO2) slope.19 –25 The ventilatory response to exercise can be measured throughout the entire exercise duration and the VE/VCO2 slope has been shown to be steeper in patients with reduced cardiac ...
... Investigators have recently shown the prognostic significance of the ventilation to carbon dioxide (VE/ VCO2) slope.19 –25 The ventilatory response to exercise can be measured throughout the entire exercise duration and the VE/VCO2 slope has been shown to be steeper in patients with reduced cardiac ...
Probability of diagnosing long QT syndrome in children and
... as having some cardiovascular diseases (Table 1). Of these, 384 (98.7% of screened) subjects participated in the second screening. With regard to seventh graders, 34 572 (99.5% of the total) subjects participated in the first screening and 586 (2.4% of the participants in the first screening) subjec ...
... as having some cardiovascular diseases (Table 1). Of these, 384 (98.7% of screened) subjects participated in the second screening. With regard to seventh graders, 34 572 (99.5% of the total) subjects participated in the first screening and 586 (2.4% of the participants in the first screening) subjec ...
Cardiovascular Defects Associated With Abnormalities in Midline
... ventriculoarterial connections, with the aorta (ao) arising from the left ventricle (lv) (arrow in a) and the pulmonary trunk (pt) arising from the right ventricle (rv) (arrow in c). d through f, Sections of Lp/Lp littermate showing double-outlet rv, with both the ao (arrow in d) and the pt (arrow i ...
... ventriculoarterial connections, with the aorta (ao) arising from the left ventricle (lv) (arrow in a) and the pulmonary trunk (pt) arising from the right ventricle (rv) (arrow in c). d through f, Sections of Lp/Lp littermate showing double-outlet rv, with both the ao (arrow in d) and the pt (arrow i ...
Emergencies related to implantable cardioverter
... arrhythmic emergencies should be devised before the procedure. ICD patients who are pacemaker-dependent should not undergo MRI. In nondependent patients, tachyarrhythmia detection and bradycardia pacing should be disabled. The latter requires programming to the nonpacing OOO mode (when available) or ...
... arrhythmic emergencies should be devised before the procedure. ICD patients who are pacemaker-dependent should not undergo MRI. In nondependent patients, tachyarrhythmia detection and bradycardia pacing should be disabled. The latter requires programming to the nonpacing OOO mode (when available) or ...
Myocardial bridges and left coronary artery trifurcation: a case report
... congenital and symptoms related to them in childhood are rare, and chronobiological extrinsic factors should influence the progression or not this entity. Furthermore, the appearance of symptoms and signs in patients who were asymptomatic can be explained by anatomical and functional changes in coro ...
... congenital and symptoms related to them in childhood are rare, and chronobiological extrinsic factors should influence the progression or not this entity. Furthermore, the appearance of symptoms and signs in patients who were asymptomatic can be explained by anatomical and functional changes in coro ...
SPECIAL POLICY: Automated External Defibrillators
... objective in responding to cardiac arrest. Emergency Medical Services will be contacted and notified after dispatching Campus Police Officers. Campus Police will notify the AED Liaison for all cardiac arrest incidents in addition to other specified notifications. Campus police officers will conduct ...
... objective in responding to cardiac arrest. Emergency Medical Services will be contacted and notified after dispatching Campus Police Officers. Campus Police will notify the AED Liaison for all cardiac arrest incidents in addition to other specified notifications. Campus police officers will conduct ...
Myocardial contrast echocardiography is superior to - Heart
... Quantitative angiography was undertaken using an automated edge detection system (CAAS II, Pye Medical, Maastricht, Netherlands) by a single observer blinded to clinical details and outcome. Calibration was based on the dimension of a contrast filled catheter. Multivessel coronary disease was define ...
... Quantitative angiography was undertaken using an automated edge detection system (CAAS II, Pye Medical, Maastricht, Netherlands) by a single observer blinded to clinical details and outcome. Calibration was based on the dimension of a contrast filled catheter. Multivessel coronary disease was define ...
The Right Ventricular Function After Left Ventricular Assist Device
... Current risk prediction schemes for RVF take into account HF severity, end-organ damage, right-heart haemodynamics, and history of cardiac procedures.8 No scheme to date includes quantitative RV variables. Of note, these schemes were primarily developed in older, pulsatile-flow LVAD cohorts. Notably ...
... Current risk prediction schemes for RVF take into account HF severity, end-organ damage, right-heart haemodynamics, and history of cardiac procedures.8 No scheme to date includes quantitative RV variables. Of note, these schemes were primarily developed in older, pulsatile-flow LVAD cohorts. Notably ...
Hypertension and Hyperlipidemia in 2017 Disclosures Learning
... Classification of Recommendations and Levels of Evidence A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, ...
... Classification of Recommendations and Levels of Evidence A recommendation with Level of Evidence B or C does not imply that the recommendation is weak. Many important clinical questions addressed in the guidelines do not lend themselves to clinical trials. Although randomized trials are unavailable, ...
LWW PPT Slide Template Master
... aorta is connected to a point past the obstruction with another vessel or a piece of another vessel, usually the left internal mammary artery or part of the leg's saphenous vein ...
... aorta is connected to a point past the obstruction with another vessel or a piece of another vessel, usually the left internal mammary artery or part of the leg's saphenous vein ...
Including patients with diabetes mellitus or coronary artery bypass
... Time domain and frequency domain analysis of HRV Calculations were made on the basis of the set of normalnormal (N-N) interbeat intervals. HRV indices calculated in this study are listed in Table I. Methods used for spectral analysis have been described in detail and will be covered only briefly her ...
... Time domain and frequency domain analysis of HRV Calculations were made on the basis of the set of normalnormal (N-N) interbeat intervals. HRV indices calculated in this study are listed in Table I. Methods used for spectral analysis have been described in detail and will be covered only briefly her ...
Medic One/Emergency Medical Services
... Your participation in the trial will provide critical information about EMS-provided CPR for adult victims of cardiac arrest. The ResQ Trial will analyze: • Return of pulse, for any duration • Patient survival to the emergency department • Patient survival to hospital discharge • Neurologic health ( ...
... Your participation in the trial will provide critical information about EMS-provided CPR for adult victims of cardiac arrest. The ResQ Trial will analyze: • Return of pulse, for any duration • Patient survival to the emergency department • Patient survival to hospital discharge • Neurologic health ( ...
Understanding Heart Failure
... Types of Heart Failure Heart failure can happen in two ways. The heart muscle may become weak and enlarged (systolic dysfunction). The weakened muscle doesn’t pump enough blood forward when the ventricles contract. Or, the heart muscle may become stiff (diastolic dysfunction). The stiff muscle can’t ...
... Types of Heart Failure Heart failure can happen in two ways. The heart muscle may become weak and enlarged (systolic dysfunction). The weakened muscle doesn’t pump enough blood forward when the ventricles contract. Or, the heart muscle may become stiff (diastolic dysfunction). The stiff muscle can’t ...
Ch. 19 Physiology of the Cardiovascular System
... and other essential materials pass from capillary blood into fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it must also be directed and delivered to those capillary beds s ...
... and other essential materials pass from capillary blood into fluids surrounding the cells as waste products are removed. Blood must not only be kept moving through its closed circuit of vessels by the pumping activity of the heart, but it must also be directed and delivered to those capillary beds s ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.