Imperial College London

ProfessorDudleyPennell

Faculty of MedicineNational Heart & Lung Institute

Professor of Cardiology
 
 
 
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Contact

 

+44 (0)20 7351 8810d.pennell

 
 
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Location

 

CMR UnitRoyal BromptonRoyal Brompton Campus

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Summary

 

Publications

Publication Type
Year
to

1024 results found

Bunce NH, Pennell DJ, 2001, Magnetic resonance of coronary arteries, EUROPEAN RADIOLOGY, Vol: 11, Pages: 721-731, ISSN: 0938-7994

Journal article

Bunce NH, Mohiaddin RH, Dahdal MD, Gibbs JSR, Pennell DJet al., 2000, Contrast-enhanced magnetic resonance angiogram of coronary artery bypass graft aneurysm, CIRCULATION, Vol: 102, Pages: 3148-3148, ISSN: 0009-7322

Journal article

Masood S, Yang G, Pennell D, Firmin Det al., 2000, Investigating Intrinsic Myocardial Mechanics - the role of MR tagging, velocity phase mapping and diffusion imaging, Journal of Magnetic Resonance Imaging, Vol: 12, Pages: 873-883

Journal article

Anderson L, Porter JB, Wonke B, Walker JM, Holden S, Davis BA, Prescott E, Charrier G, Firmin DN, Pennell DJet al., 2000, Relationship of myocardial iron overload to right and left ventricular function in homozygous β-thalassemia., BLOOD, Vol: 96, Pages: 605A-+, ISSN: 0006-4971

Journal article

Anderson L, Porter JB, Wonke B, Walker JM, Holden S, Davis BA, Prescott E, Charrier C, Firmin DN, Pennell DJet al., 2000, Cardiac iron deposition is not predicted by conventional markers of iron overload in homozygous β-thalassaemia., BLOOD, Vol: 96, Pages: 606A-+, ISSN: 0006-4971

Journal article

Carr-White GS, Routledge T, Glennen S, Edwards S, Burman E, Pennell DJ, Kilner P, Hon JKF, Khan H, Yacoub Met al., 2000, Incidence, location and significance of pulmonary homograft stenosis after the Ross operation: An echocardiographic and MRI study, CIRCULATION, Vol: 102, Pages: 372-372, ISSN: 0009-7322

Journal article

Anderson LJ, Holden S, Davis BA, Prescott E, Charrier C, Bunce NH, Firmin DN, Porter JB, Wonke B, Walker JM, Pennell DJet al., 2000, A novel method of cardiac iron measurement using magnetic resonance T2*imaging in thalassemia: Validation and clinical application, CIRCULATION, Vol: 102, Pages: 403-403, ISSN: 0009-7322

Journal article

Panting JR, Gatehouse PD, Burger P, Grothues F, Firmin DN, Collins PD, Pennell DJet al., 2000, Abnormally heterogeneous myocardial perfusion in syndrome X detected by first-pass magnetic resonance imaging., CIRCULATION, Vol: 102, Pages: 686-686, ISSN: 0009-7322

Journal article

Rajappan K, Rimoldi OE, Ariff B, Pennell DJ, Sheridan DJ, Camici PGet al., 2000, The impairment of coronary vasodilator reserve is related to the severity of aortic stenosis, CIRCULATION, Vol: 102, Pages: 785-785, ISSN: 0009-7322

Journal article

Rajappan K, Bellenger NG, Anderson L, Pennell DJet al., 2000, The role of cardiovascular magnetic resonance in heart failure, EUROPEAN JOURNAL OF HEART FAILURE, Vol: 2, Pages: 241-252, ISSN: 1388-9842

Journal article

Bellenger NG, Burgess MI, Ray SG, Lahiri A, Coats AJS, Cleland JGF, Pennell DJet al., 2000, Comparison of left ventricular ejection fraction and volumes in heart failure by echocardiography, radionuclide ventriculography and cardiovascular magnetic resonance - Are they interchangeable?, EUROPEAN HEART JOURNAL, Vol: 21, Pages: 1387-1396, ISSN: 0195-668X

Journal article

Bellenger NG, Grothues F, Smith GC, Pennell DJet al., 2000, Quantification of right and left ventricular function by cardiovascular magnetic resonance, HERZ, Vol: 25, Pages: 392-399, ISSN: 0340-9937

Journal article

Sorensen M, Ong P, Webb C, Hayward C, Gatehouse P, Collins P, Pennell Det al., 2000, Measurement of endothelium-dependent and endothelium-independent vascular function by cardiovascular magnetic resonance, JOURNAL OF PHYSIOLOGY-LONDON, Vol: 525, Pages: 11P-11P, ISSN: 0022-3751

Journal article

Bunce N, Grothues F, Panting J, Jhooti P, Davies S, Pennell Det al., 2000, Non invasive assessment of patients with angina by magnetic resonance coronary angiography and perfusion, Heart, Vol: 83, ISSN: 1355-6037

The current "gold-standard" for the diagnosis of coronary artery disease is invasive cardiac catheterisation. Magnetic resonance coronary angiography (MRCA) can non-invasively assess coronary anatomy. Gadolinium MRI can also assess myocardial perfusion. The purpose of this study was to determine if a combined approach in one scan could be used to assess coronary artery disease in patients on the routine waiting list for cardiac catheterisation. MR scanning was performed in 16 patients (3 female, 13 male, mean age 56 years) with angina prior to coronary angiography. Using a Picker 1.5T magnet, coronary artery anatomy was studied using a 3 dimensional MRCA HOPE (Hybrid Ordered Phase Encoding) FLASH (Fast Low Angle Shot) technique. Eight 2.5mm slices were imaged in a 3D slab positioned in a transverse plane at the origin of the left main stem, with a second oblique slab to cover the right coronary artery. Cardiac motion was limited by ECG-gating at mid-diastole. Respiratory motion was suppressed by using navigator echoes through the right hemi-diaphragm and by respiratory reordering of the image data. Myocardial perfusion was performed at rest and during adenosine stress at 140μg/kg/min, using a first pass Gadolinium DTPA bolus administered by a power injector. All MR studies were completed in less than 1 hour. Cardiac catheterisation was performed in the standard manner and assessed for the presence of significant coronary stenoses (>50% diameter reduction). CMR images were visually assessed for the presence of coronary stenoses and for myocardial perfusion abnormalities. On X-ray angiography 9/16 patients had significant stenoses, all of which had abnormal MRCA and 5 of which had abnormal MR perfusion. Of the 7 patients with normal X-ray angiography, 6 had normal MRCA and 6 had normal MR perfusion. This combined approach is feasible, time effective, has the potential to reduce costs and would be useful for planning coronary intervention, by being able

Journal article

Pennell DJ, Ray S, Webster J, Davies G, Burgess M, Lahiri A, Murray G, Taylor G, Cleland JGFet al., 2000, The christmas study: Incidence of hibernation and ischemia in heart failure, Heart, Vol: 83, ISSN: 1355-6037

The CHRISTMAS (Carvedilol Hibernation and Reversible Ischaemia Trial: Marker of Success) study investigates whether the presence of viable but dysfunctional myocardium is an important determinant of the improvement in ventricular function observed during treatment with Carvedilol of patients who have chronic heart failure (CHF) and ischemic heart disease (IHD) 400 such patients will be randomised to Carvedilol or placebo for 6 months. To date, 303 patients have been screened and 251 patients randomised into the study. Interim data on baseline characteristics are available on 159 patients. Viable but dysfunctional myocardium was defined as a mismatch between regional wall motion (echo -severe hypokinesia or worse), and nitrate enhanced resting MIBI uptake (>60% = viable) using a 9 segment model, and blind assessment by separate core labs. There were 138 (87%) males, mean age of 63 years, and mean ejection fraction of 28%. There was no difference in mean ejection fraction between the hibernating and non-hibernating groups (27.8% vs 28.7%, p=ns). The NYHA class was 13% class I, 62% class II, and 25% class 3. 57% of the patients had hibernation with a mean of 2.5 (range 1-6) segments, equivalent to 28% of the myocardium. There was no significant relation between the number of hibernating segments and the baseline ejection fraction (p=ns). Stress MIBI imaging showed that 55% of patients with hibernation had reversible defects suggesting ischemia (>10% segmental decrement in uptake) affecting an average of 1.4 (range 0-7) segments, compared with 55% ischaemic (p=ns) with 1.0 segments (range 0-5, p=ns) in the non-hibernating group. This large prospective study suggests that hibernation (57%) and stress induced ischemia (55%) are common in patients with CHF due to IHD and are therefore important potential targets for therapy in CHF, which might be addressed by beta-blockade.

Journal article

Bellenger NG, Marcus NJ, Davies C, Yacoub M, Banner NR, Pennell DJet al., 2000, Left ventricular function and mass after orthotopic heart transplantation: A comparison of cardiovascular magnetic resonance with echocardiography, JOURNAL OF HEART AND LUNG TRANSPLANTATION, Vol: 19, Pages: 444-452, ISSN: 1053-2498

Journal article

Stables RH, Mohiaddin R, Panting J, Pennell DJ, Pepper J, Sigwart Uet al., 2000, Images in cardiovascular medicine. Exclusion of an aneurysmal segment of the thoracic aorta with covered stents., Circulation, Vol: 101, Pages: 1888-1889

Journal article

Taylor AM, Thorne SA, Rubens MB, Jhooti P, Keegan J, Gatehouse PD, Wiesmann F, Grothues F, Somerville J, Pennell DJet al., 2000, Coronary artery imaging in grown up congenital heart disease - Complementary role of magnetic resonance and X-ray coronary angiography, CIRCULATION, Vol: 101, Pages: 1670-1678, ISSN: 0009-7322

Journal article

Bellenger NG, Gatehouse PD, Rajappan K, Keegan J, Firmin DN, Pennell DJet al., 2000, Left ventricular quantification in heart failure by cardiovascular MR using prospective respiratory navigator gating: Comparison with breath-hold acquisition, Journal of Magnetic Resonance Imaging, Vol: 11, Pages: 411-411, ISSN: 1053-1807

Journal article

Bellenger NG, Gatehouse PD, Rajappan K, Keegan J, Firmin DN, Pennell DJet al., 2000, Left ventricular quantification in heart failure by cardiovascular MR using prospective respiratory navigator gating: Comparison with breath-hold acquisition, JMRI-JOURNAL OF MAGNETIC RESONANCE IMAGING, Vol: 11, Pages: 411-417, ISSN: 1053-1807

Journal article

Taylor AM, Keegan J, Jhooti P, Gatehouse PD, Firmin DN, Pennell DJet al., 2000, A comparison between segmented k-space FLASH and interleaved spiral MR coronary angiography sequences, JOURNAL OF MAGNETIC RESONANCE IMAGING, Vol: 11, Pages: 394-400, ISSN: 1053-1807

Journal article

Pennell DJ, Ray SG, Davies G, Burgess M, Webster J, Slomka P, Atkinson P, Cleland JGFet al., 2000, The Carvedilol Hibernation Reversible Ischaemia Trial, Marker of Success (CHRISTMAS) study - Methodology of a randomised, placebo controlled, multicentre study of carvedilol in hibernation and heart failure, INTERNATIONAL JOURNAL OF CARDIOLOGY, Vol: 72, Pages: 265-274, ISSN: 0167-5273

Journal article

Bellenger NG, Burgess MI, Ray SG, Pennell DJet al., 2000, Comparison of left ventricular functional analysis in heart failure by echocardiography, radionuclide ventriculography and magnetic resonance; Implications for research and clinical practice, Publisher: ELSEVIER SCIENCE INC, Pages: 427A-427A, ISSN: 0735-1097

Conference paper

Bellenger NG, Davies LC, Francis JM, Pennell DJet al., 2000, Cardiovascular magnetic resonance only requires small sample sizes in the study of heart failure, Publisher: ELSEVIER SCIENCE INC, Pages: 427A-427A, ISSN: 0735-1097

Conference paper

Pennell DJ, 2000, Long live the king, ISSN: 1097-6647

Conference paper

Karwatowski SP, Chronos NA, Sinclaire H, Forbat SM, Sutton MGS, Black C, Underwood SR, Pennell DJet al., 2000, Effect of systemic sclerosis on left ventricular long-axis motion and left ventricular mass assessed by magnetic resonance, JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE, Vol: 2, Pages: 109-117, ISSN: 1097-6647

Journal article

Stables RH, Mohiaddin R, Panting J, Pennell DJ, Pepper J, Sigwart Uet al., 2000, Exclusion of an aneurysmal segment of the thoracic aorta with covered stents, Circulation, Vol: 101, Pages: 1888-1889

Journal article

Myerson SG, Pennell DJ, 2000, Intercostal artery aneurysm postcoarctation repair diagnosed by magnetic resonance angiography, JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE, Vol: 2, Pages: 137-138, ISSN: 1097-6647

Journal article

Bellenger NG, Davies LC, Francis JM, Coats AJS, Pennell DJet al., 2000, Reduction in sample size for studies of remodeling in heart failure by the use of cardiovascular magnetic resonance, JOURNAL OF CARDIOVASCULAR MAGNETIC RESONANCE, Vol: 2, Pages: 271-278, ISSN: 1097-6647

Journal article

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