Henry D. Royal

ORCID: 0000-0002-5998-6201
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About
Contact & Profiles
Research Areas
  • Medical Imaging Techniques and Applications
  • Radiation Dose and Imaging
  • Cardiac Imaging and Diagnostics
  • Advanced X-ray and CT Imaging
  • Medical Imaging and Pathology Studies
  • Venous Thromboembolism Diagnosis and Management
  • Advanced MRI Techniques and Applications
  • Radiomics and Machine Learning in Medical Imaging
  • Ultrasound in Clinical Applications
  • Gastrointestinal Bleeding Diagnosis and Treatment
  • Radioactivity and Radon Measurements
  • Radiology practices and education
  • Advanced Radiotherapy Techniques
  • Ovarian cancer diagnosis and treatment
  • Endometrial and Cervical Cancer Treatments
  • Radiopharmaceutical Chemistry and Applications
  • Gastrointestinal disorders and treatments
  • Traumatic Brain Injury and Neurovascular Disturbances
  • Acute Ischemic Stroke Management
  • Atomic and Subatomic Physics Research
  • Hematological disorders and diagnostics
  • Cardiac pacing and defibrillation studies
  • Digital Radiography and Breast Imaging
  • Orthopedic Infections and Treatments
  • Thyroid Cancer Diagnosis and Treatment

Mallinckrodt (United States)
2007-2024

Washington University in St. Louis
1989-2021

Society of Nuclear Medicine and Molecular Imaging
2012-2014

Walter Reed National Military Medical Center
2014

Massachusetts General Hospital
1985-2013

American Board of Internal Medicine
2008

American Board of Nuclear Medicine
2008

Harvard University
1982-2003

Washington University Medical Center
1996

UCLouvain Saint-Louis Brussels
1994

Preamble……1 I. Introduction: patient management, licensure.……2 II. Goals.……2 III. Definitions: risk levels……2 IV. Common clinical indications……3 V. Qualifications and responsibilities of personnel (in the United States).……3 VI. Procedure/specifications

10.2967/jnumed.112.105148 article EN Journal of Nuclear Medicine 2012-07-11

Background Comprehensive assessments of the frequency and associated doses from radiologic nuclear medicine procedures are rarely conducted. The use these population-based radiation dose increased remarkably 1980 to 2006. Purpose To determine change in per capita exposure United States 2006 2016. Materials Methods U.S. National Council on Radiation Protection Measurements conducted a retrospective assessment for 2016 compared results previously published data year Effective values were...

10.1148/radiol.2020192256 article EN Radiology 2020-03-17

Previous reports have shown that increases in heart rate may result enhanced left ventricular (LV) systolic and diastolic performance. To assess whether this phenomenon occurs the presence of depressed LV function, effects pacing on pressure volume were compared seven patients with dilated cardiomyopathy (LV ejection fraction 0.19 +/- 0.11) six no or minimal coronary artery disease 0.69 0.11). Patients normal function demonstrated significant peak-positive dP/dt, end-systolic pressure-volume...

10.1172/jci113778 article EN Journal of Clinical Investigation 1988-11-01

The Society of Nuclear Medicine (SNM) is an international scientific and professional organization founded in 1954 to promote the science, technology, practical application nuclear medicine. Its 16,000 members are physicians, technologists, scientists specializing research

10.2967/jnmt.111.101386 article EN Journal of Nuclear Medicine Technology 2012-01-26

Background Pulmonary embolism (PE) is a leading cause of maternal mortality in the developed world. Along with appropriate prophylaxis and therapy, prevention death from PE pregnancy requires high index clinical suspicion followed by timely accurate diagnostic approach. Methods To provide guidance on this important health issue, multidisciplinary panel major medical stakeholders was convened to develop evidence-based guidelines for evaluation suspected pulmonary using Grades Recommendation,...

10.1148/radiol.11114045 article EN Radiology 2012-01-26

I. PURPOSE The purpose of this guideline is to assist nuclear medicine practitioners in recommending, performing, interpreting, and reporting the results gastric-emptying motility studies adults. II. BACKGROUND INFORMATION AND DEFINITIONS Radionuclide gastric emptying are most comprehensive physiologic motor function available. noninvasive, use a meal (solids with or without liquids), quantitative. Serial testing can determine effectiveness therapy. Society Nuclear Medicine (SNM) American...

10.2967/jnmt.109.067843 article EN Journal of Nuclear Medicine Technology 2009-08-19

In this study we assessed regional cerebral blood flow in patients with signs and symptoms of acute stroke using single-photon emission computed tomography (SPECT) N-isopropyl I-123 p-iodoamphetamine (IMP). Twenty-five infarction had both IMP brain perfusion studies CT scans performed within one week each other; 22 positive three negative studies. Of the who studies, six initially. 16 abnormal eight depicted areas edema that were smaller than deficits noted on approximately equal size to...

10.1161/01.str.15.1.40 article EN Stroke 1984-01-01

Endometrial cancer is the most common gynecologic and fourth malignancy in women United States. Cross-sectional imaging plays a vital role pretreatment assessment of endometrial cancers should be viewed as complementary tool for surgical evaluation planning these patients. Although transvaginal US remains preferred examination screening purposes, MRI has emerged modality choice staging recurrence or treatment response. A combination dynamic contrast-enhanced diffusion weighted provides...

10.1097/ruq.0000000000000068 article EN Ultrasound Quarterly 2014-02-20

We evaluated the sensitivity and specificity of positron emission tomography for diagnosis probable Alzheimer's disease under conditions similar to those encountered in routine clinical practice nuclear medicine. obtained tomographic images regional cerebral blood flow from three groups subjects: (1) 13 subjects, ages 69 84, who had diagnosed by validated criteria; (2) 15 57 77, Parkinson's without dementia; (3) 11 65 83, were normal. Three blinded reviewers, not previously seen images,...

10.1212/wnl.42.4.765 article EN Neurology 1992-04-01

No AccessJournal of UrologyInvestigative Urology1 Feb 1995Laparoscopic Repair Vesicoureteral Reflux Utilizing the Lich-Gregoir Technique in Pig Model Elspeth M. McDougall, Donald A. Urban, Kurt Kerbl, Ralph V. Clayman, Paul Fadden, Henry D. Royal, Paramjit S. Chandhoke, and A.M. Stone McDougallElspeth McDougall , UrbanDonald Urban KerblKurt Kerbl ClaymanRalph Clayman FaddenPaul Fadden RoyalHenry Royal ChandhokeParamjit Chandhoke StoneA.M. View All Author...

10.1097/00005392-199502000-00070 article EN The Journal of Urology 1995-02-01
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