Ashley M. Groves
University College London
Internal medicineRadiologyPET-CTSurgeryPathologyMagnetic resonance imagingOncologyPerfusionTomographyCardiologyProspective cohort studyMedical physicsStandardized uptake valuePositron emission tomographyLung cancerLungNuclear medicineIn patientFdg pet ctComputer scienceColorectal cancerMedicine
302Publications
48H-index
5,206Citations
Publications 298
Newest
#1Marian Galovic (UCL Institute of Neurology)H-Index: 2
#2Kjell Erlandsson (UCL: University College London)H-Index: 27
Last. Matthias J. Koepp (UCL Institute of Neurology)H-Index: 73
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Abstract Blood-based kinetic analysis of PET data relies on an accurate estimate of the arterial plasma input function (PIF). An alternative to invasive measurements from arterial sampling is an image-derived input function (IDIF). However, an IDIF provides the whole blood radioactivity concentration, rather than the required free tracer radioactivity concentration in plasma. To estimate the tracer PIF, we corrected an IDIF from the carotid artery with estimates of plasma parent fraction (PF) an...
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#1Balaji Ganeshan (UCL: University College London)H-Index: 32
#2Kenneth A. Miles (UCL: University College London)H-Index: 56
Last. Ashley M. Groves (UCL: University College London)H-Index: 48
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To assess the capability of fractional water content (FWC) texture analysis (TA) to generate biologically relevant information from routine PET/MRI acquisitions for colorectal cancer (CRC) patients. Thirty consecutive primary CRC patients (mean age 63.9, range 42-83 years) prospectively underwent FDG-PET/MRI. FWC tumor parametric images generated from Dixon MR sequences underwent TA using commercially available research software (TexRAD). Data analysis comprised (1) identification of functional ...
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#1A J Brown (Royal Free Hospital)
#2S. Shah (Royal Free Hospital)
Last. Anmol Malhotra (Royal Free Hospital)H-Index: 12
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Abstract We present a multimodality pictorial review of axillary lymphadenopathy in patients recently vaccinated against COVID-19. As the mass vaccination programme continues to be rolled out worldwide in an effort to combat the pandemic, it is important that radiologists consider recent COVID-19 vaccination in the differential diagnosis of unilateral axillary lymphadenopathy and are aware of typical appearances across all imaging methods. We review current guidelines on the management of unilat...
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#1Shih-Hsin Chen (UCL: University College London)H-Index: 1
#2Kenneth A. Miles (UCL: University College London)H-Index: 56
Last. Ashley M. Groves (UCL: University College London)H-Index: 48
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PURPOSE This study assesses the potential for vascular-metabolic imaging with FluoroDeoxyGlucose (FDG)-Positron Emission Tomography/Computed Tomography (PET/CT) perfusion to provide markers of prognosis specific to the site and stage of colorectal cancer. METHODS This prospective observational study comprised of participants with suspected colorectal cancer categorized as either (a) non-metastatic colon cancer (M0colon), (b) non-metastatic rectal cancer (M0rectum), or (c) metastatic colorectal c...
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#1Adam Harry Brown (UCL: University College London)H-Index: 1
#2Sweni ShahH-Index: 1
Last. Anmol MalhotraH-Index: 12
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We report a case series of biopsy-proven reactive axillary lymph nodes, which were avid on FDG PET/CT in breast cancer patients post COVID-19 vaccination. With 4 cases presenting in a consecutive 10-day period, it became apparent that metabolically active axillary lymphadenopathy is an adverse effect of COVID-19 vaccines, currently being deployed worldwide. This may lead to patients undergoing unnecessary biopsy. We have started taking a COVID-19 vaccine status history before PET/CT. If enlarged...
2 CitationsSource
#1John Hoath (UCL: University College London)H-Index: 1
#2Leon Menezes (UCL: University College London)H-Index: 21
Last. Ashley M. Groves (UCL: University College London)H-Index: 48
view all 8 authors...
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#1Fulvio Zaccagna (U of T: University of Toronto)H-Index: 17
#2Balaji Ganeshan (UCL: University College London)H-Index: 32
Last. Leon Menezes (UCL: University College London)H-Index: 21
view all 10 authors...
PURPOSE To assess the potential role of computed tomography (CT) texture analysis (CTTA) in identifying vulnerable patients with carotid artery atherosclerosis. METHODS In this case-control pilot study, 12 patients with carotid atherosclerosis and a subsequent history of transient ischemic attack or stroke were age and sex matched with 12 control cases with asymptomatic carotid atherosclerosis (follow-up time 103.58 ± 9.2 months). CTTA was performed using a commercially available research softwa...
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#1Delphine L. Chen (UW: University of Washington)H-Index: 1
#2Safia Ballout (University of Leeds)H-Index: 1
Last. Tilo Winkler (Harvard University)H-Index: 27
view all 34 authors...
Positron emission tomography (PET) with 18F-fluorodeoxyglucose (18F-FDG) has been increasingly applied, predominantly in the research setting, to study drug effects and pulmonary biology and monitor disease progression and treatment outcomes in lung diseases, disorders that interfere with gas exchange through alterations of the pulmonary parenchyma, airways and/or vasculature. To date, however, there are no widely accepted standard acquisition protocols and imaging data analysis methods for pulm...
1 CitationsSource
#1Jason Yeung (UCL: University College London)H-Index: 3
#2Balaji Ganeshan (UCL: University College London)H-Index: 32
Last. Steve Bandula (UCL: University College London)H-Index: 10
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Background: Evaluate equilibrium contrast-enhanced CT (EQ-CT) texture analysis (EQ-CTTA) against histologically-quantified fibrosis, serum-based enhanced liver fibrosis panel (ELF) and imaging-based extracellular volume fraction (ECV) in chronic hepatitis. Methods: This study was a re-analysis of image data from a previous prospective study. Pre- and equilibrium-phase post-IV contrast CT datasets were collected from patients with chronic hepatitis with contemporaneous liver biopsy and serum ELF ...
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#1Jagdeep Sahota (UCL: University College London)H-Index: 4
#2Balaji Ganeshan (UCLH: University College Hospital)H-Index: 32
Last. Joanna C. Porter (UCL: University College London)H-Index: 24
view all 10 authors...
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