Articles

Data-driven haemodynamic response function extraction using Fourier-wavelet regularised deconvolution

We present a simple, data-driven method to extract haemodynamic response functions (HRF) from functional magnetic resonance imaging (fMRI) time series, based on the Fourier-wavelet regularised deconvolution (ForW...

Authors: Alle Meije Wink, Hans Hoogduin and Jos BTM Roerdink

Ultrasound evaluation in combination with finger extension force measurements of the forearm musculus extensor digitorum communis in healthy subjects

The aim of this study was to evaluate the usefulness of an ultrasound-based method of examining extensor muscle architecture, especially the parameters important for force development. This paper presents the ...

Authors: Sofia Brorsson, Anna Nilsdotter, Marita Hilliges, Christer Sollerman and Ylva Aurell

Abdominal ultrasonography in HIV/AIDS patients in southwestern Nigeria

Though the major target of the HIV-virus is the immune system, the frequency of abdominal disorders in HIV/AIDS patients has been reported to be second only to pulmonary disease. These abdominal manifestations...

Authors: Millicent O Obajimi, Mojisola O Atalabi, Godwin I Ogbole, Adenike T Adeniji-Sofoluwe, Atinuke M Agunloye, Ademola J Adekanmi, Yvonne U Osuagwu, Sefiat A Olarinoye, Mojisola A Olusola-Bello, Ayotunde O Ogunseyinde, Yetunde A Aken'Ova and Isaac F Adewole

Post traumatic brain perfusion SPECT analysis using reconstructed ROI maps of radioactive microsphere derived cerebral blood flow and statistical parametric mapping

Assessment of cerebral blood flow (CBF) by SPECT could be important in the management of patients with severe traumatic brain injury (TBI) because changes in regional CBF can affect outcome by promoting edema ...

Authors: Anthony J McGoron, Michael Capille, Michael F Georgiou, Pablo Sanchez, Juan Solano, Manuel Gonzalez-Brito and John W Kuluz

Using magnetic resonance microscopy to study the growth dynamics of a glioma spheroid in collagen I: A case study

Highly malignant gliomas are characterized by rapid growth, extensive local tissue infiltration and the resulting overall dismal clinical outcome. Gaining any additional insights into the complex interaction b...

Authors: Shuning Huang, David Vader, Zhihui Wang, Anat Stemmer-Rachamimov, David A Weitz, Guangping Dai, Bruce R Rosen and Thomas S Deisboeck

The Swimmer's view: does it really show what it is supposed to show? A retrospective study

One of the basic principles in the primary survey of a trauma patient is immobilisation of the cervical spine till cleared of any injury. Lateral cervical spine radiograph is one of the important initial radio...

Authors: Ulfin Rethnam, Rajam SU Yesupalan and Salah S Bastawrous

In vivo study of experimental pneumococcal meningitis using magnetic resonance imaging

Magnetic Resonance Imaging (MRI) methods were evaluated as a tool for the study of experimental meningitis. The identification and characterisation of pathophysiological parameters that vary during the course ...

Authors: Christian T Brandt, Helle Simonsen, Matthew Liptrot, Lise V Søgaard, Jens D Lundgren, Christian Østergaard, Niels Frimodt-Møller and Ian J Rowland

Prevalence and patterns of soft tissue metastasis: detection with true whole-body F-18 FDG PET/CT

The aim of this retrospective study was to report the prevalence and patterns of soft tissue (ST) metastasis detected with true whole-body (TWB) F-18 FDG PET/CT acquired from the top of the skull through the b...

Authors: Nghi C Nguyen, Bassem T Chaar and Medhat M Osman

Automated recognition of cell phenotypes in histology images based on membrane- and nuclei-targeting biomarkers

Three-dimensional in vitro culture of cancer cells are used to predict the effects of prospective anti-cancer drugs in vivo. In this study, we present an automated image analysis protocol for detailed morphologic...

Authors: Bilge Karaçalı, Alexandra P Vamvakidou and Aydın Tözeren

Synthesis of two potential NK₁-receptor ligands using [1-¹¹C]ethyl iodide and [1-¹¹C]propyl iodide and initial PET-imaging

The previously validated NK₁-receptor ligand [O-methyl-¹¹C]GR205171 binds with a high affinity to the NK₁-receptor and displays a slow dissociation from the receptor. Hence, it cannot be used in vivo for detectin...

Authors: Stina Syvänen, Jonas Eriksson, Tove Genchel, Örjan Lindhe, Gunnar Antoni and Bengt Långström

Radiation dose reduction at a price: the effectiveness of a male gonadal shield during helical CT scans

It is estimated that 60 million computed tomography (CT) scans were performed during 2006, with approximately 11% of those performed on children age 0–15 years. Various types of gonadal shielding have been eva...

Authors: Lawrence T Dauer, Kevin A Casciotta, Yusuf E Erdi and Lawrence N Rothenberg

In-vivo visualisation of the anatomical structures related to the acupuncture points Dai mai and Shen mai by MRI: A single-case pilot study

The concept of acupuncture point localisation in Traditional Chinese Medicine (TCM) is based on millenary practical experience. Modern imaging methods such as PET, MRI and SPECT have been used primary for the ...

Authors: Roy Moncayo, Ansgar Rudisch, Markus Diemling and Christian Kremser

Quantitative and qualitative differences in subcutaneous adipose tissue stores across lipodystrophy types shown by magnetic resonance imaging

Lipodystrophies are characterized by redistributed subcutaneous fat stores. We previously quantified subcutaneous fat by magnetic resonance imaging (MRI) in the legs of two patients with familial partial lipod...

Authors: Salam A Al-Attar, Rebecca L Pollex, John F Robinson, Brooke A Miskie, Rhonda Walcarius, Cynthia Harper Little, Brian K Rutt and Robert A Hegele

Automated detection of regions of interest for tissue microarray experiments: an image texture analysis

Recent research with tissue microarrays led to a rapid progress toward quantifying the expressions of large sets of biomarkers in normal and diseased tissue. However, standard procedures for sampling tissue fo...

Authors: Bilge Karaçali and Aydin Tözeren

Evaluation of 3D surface scanners for skin documentation in forensic medicine: comparison of benchmark surfaces

Authors: Wolf Schweitzer, Martin Häusler, Walter Bär and Michael Schaepman

Imaging corticospinal tract connectivity in injured rat spinal cord using manganese-enhanced MRI

Manganese-enhanced MRI (MEI) offers a novel neuroimaging modality to trace corticospinal tract (CST) in live animals. This paper expands this capability further and tests the utility of MEI to image axonal fib...

Authors: Mehmet Bilgen

Large-scale computations on histology images reveal grade-differentiating parameters for breast cancer

Tumor classification is inexact and largely dependent on the qualitative pathological examination of the images of the tumor tissue slides. In this study, our aim was to develop an automated computational meth...

Authors: Sokol Petushi, Fernando U Garcia, Marian M Haber, Constantine Katsinis and Aydin Tozeren

Audit of the change in the on-call practices in neuroradiology and factors affecting it

On call practices had recently changed at the Newcastle General Hospital to accommodate increasing CT scan requests and reduce the workloads of the radiologists. In the new system, the person responsible for d...

Authors: Nitin Mukerji, Dorothy Wallace and Dipayan Mitra

A three-dimensional multivariate image processing technique for the analysis of FTIR spectroscopic images of multiple tissue sections

Three-dimensional (3D) multivariate Fourier Transform Infrared (FTIR) image maps of tissue sections are presented. A villoglandular adenocarcinoma from a cervical biopsy with a number of interesting anatomical...

Authors: Bayden R Wood, Keith R Bambery, Corey J Evans, Michael A Quinn and Don McNaughton

Semi-automated segmentation and quantification of adipose tissue in calf and thigh by MRI: a preliminary study in patients with monogenic metabolic syndrome

With the growing prevalence of obesity and metabolic syndrome, reliable quantitative imaging methods for adipose tissue are required. Monogenic forms of the metabolic syndrome include Dunnigan-variety familial...

Authors: Salam A Al-Attar, Rebecca L Pollex, John F Robinson, Brooke A Miskie, Rhonda Walcarius, Brian K Rutt and Robert A Hegele

Echocardiographic partition values and prevalence of left ventricular hypertrophy in hypertensive Nigerians

Left ventricular hypertrophy (LVH) is a well known independent risk factor for cardiovascular events. It has been shown that combination of left ventricular mass (LVM) and relative wall thickness (RWT) can be ...

Authors: Adewole A Adebiyi, Okechukwu S Ogah, Akinyemi Aje, Dike B Ojji, Adedeji K Adebayo, Olulola O Oladapo and Ayodele O Falase

MRCP compared to diagnostic ERCP for diagnosis when biliary obstruction is suspected: a systematic review

Magnetic resonance cholangiopancreatography (MRCP) is an alternative to diagnostic endoscopic retrograde cholangiopancreatography (ERCP) for investigating biliary obstruction. The use of MRCP, a non-invasive p...

Authors: Eva C Kaltenthaler, Stephen J Walters, Jim Chilcott, Anthony Blakeborough, Yolanda Bravo Vergel and Steven Thomas

Chest radiography practice in critically ill patients: a postal survey in the Netherlands

To ascertain current chest radiography practice in intensive care units (ICUs) in the Netherlands.

Authors: Marleen E Graat, Karin A Hendrikse, Peter E Spronk, Johanna C Korevaar, Jaap Stoker and Marcus J Schultz

No evidence of myocardial restoration following transplantation of mononuclear bone marrow cells in coronary bypass grafting surgery patients based upon cardiac SPECT and ¹⁸F-PET

We tested the hypothesis, that intramyocardial injection of mononuclear bone marrow cells combined with coronary artery bypass grafting (CABG) surgery improves tissue viability or function in infarct regions w...

Authors: Paschalis Tossios, Jochen Müller-Ehmsen, Matthias Schmidt, Christof Scheid, Nermin Ünal, Detlef Moka, Robert HG Schwinger and Uwe Mehlhorn

Thyroid shields and neck exposures in cephalometric radiography

The thyroid is among the more radiosensitive organs in the body. The goal of this study was twofold: (1) to evaluate age-related changes in what is exposed to ionizing radiation in the neck area, and (2) to as...

Authors: Philippe Hujoel, Lars Hollender, Anne-Marie Bollen, John D Young, Joana Cunha-Cruz, Molly McGee and Alex Grosso

A method for dynamic subtraction MR imaging of the liver

Subtraction of Dynamic Contrast-Enhanced 3D Magnetic Resonance (DCE-MR) volumes can result in images that depict and accurately characterize a variety of liver lesions. However, the diagnostic utility of subtr...

Authors: Luca T Mainardi, Katia M Passera, Agnese Lucesoli, Paolo Potepan, Ernesto Setti and Renato Musumeci

Influence of gold nanoparticles on collagen fibril morphology quantified using transmission electron microscopy and image analysis

Development of implantable biosensors for disease detection is challenging because of poor biocompatibility of synthetic materials. A possible solution involves engineering interface materials that promote sel...

Authors: Mark A Haidekker, Lisa W Boettcher, Jonathan D Suter, Rebecca Rone and Sheila A Grant

Percutaneous subclavian artery stent-graft placement following failed ultrasound guided subclavian venous access

Ultrasound guidance for central and peripheral venous access has been proven to improve success rates and reduce complications of venous cannulation. Appropriately trained and experienced operators add signifi...

Authors: Brent Burbridge, Grant Stoneham and Peter Szkup

The prevention of anaphylactoid reactions to iodinated radiological contrast media: a systematic review

Anaphylactoid reactions to iodinated contrast media are relatively common and potentially life threatening. Opinion is divided as to the utility of medications for preventing these reactions. We performed a sy...

Authors: Anthony Delaney, Andrew Carter and Malcolm Fisher

Three-dimensional drip infusion CT cholangiography in patients with suspected obstructive biliary disease: a retrospective analysis of feasibility and adverse reaction to contrast material.

Computed Tomography Cholangiography (CTC) is a fast and widely available alternative technique to visualise hepatobiliary disease in patients with an inconclusive ultrasound when MRI cannot be performed. The m...

Authors: A Persson, N Dahlström, Ö Smedby and TB Brismar

Mindboggle: Automated brain labeling with multiple atlases

To make inferences about brain structures or activity across multiple individuals, one first needs to determine the structural correspondences across their image data. We have recently developed Mindboggle as ...

Authors: Arno Klein, Brett Mensh, Satrajit Ghosh, Jason Tourville and Joy Hirsch

Systematic review and meta-analysis of the diagnostic accuracy of ultrasonography for deep vein thrombosis

Ultrasound (US) has largely replaced contrast venography as the definitive diagnostic test for deep vein thrombosis (DVT). We aimed to derive a definitive estimate of the diagnostic accuracy of US for clinical...

Authors: Steve Goodacre, Fiona Sampson, Steve Thomas, Edwin van Beek and Alex Sutton

Noise correlation in PET, CT, SPECT and PET/CT data evaluated using autocorrelation function: a phantom study on data, reconstructed using FBP and OSEM

Positron Emission Tomography (PET), Computed Tomography (CT), PET/CT and Single Photon Emission Tomography (SPECT) are non-invasive imaging tools used for creating two dimensional (2D) cross section images of ...

Authors: Pasha Razifar, Mattias Sandström, Harald Schnieder, Bengt Långström, Enn Maripuu, Ewert Bengtsson and Mats Bergström

A new anisotropy index on trabecular bone radiographic images using the fast Fourier transform

The degree of anisotropy (DA) on radiographs is related to bone structure, we present a new index to assess DA.

Authors: Barbara Brunet-Imbault, Gerald Lemineur, Christine Chappard, Rachid Harba and Claude-Laurent Benhamou

Non-isotropic noise correlation in PET data reconstructed by FBP but not by OSEM demonstrated using auto-correlation function

Positron emission tomography (PET) is a powerful imaging technique with the potential of obtaining functional or biochemical information by measuring distribution and kinetics of radiolabelled molecules in a b...

Authors: Pasha Razifar, Mark Lubberink, Harald Schneider, Bengt Långström, Ewert Bengtsson and Mats Bergström

Molecular mapping of periodontal tissues using infrared microspectroscopy

Chronic periodontitis is an inflammatory disease of the supporting structures of the teeth. Infrared microspectroscopy has the potential to simultaneously monitor multiple disease markers, including cellular i...

Authors: Allan Hynes, David A Scott, Angela Man, David L Singer, Michael G Sowa and Kan-Zhi Liu

Measuring body composition in overweight individuals by dual energy x-ray absorptiometry

Dual energy x-ray absorptiometry (DXA) is widely used for body composition measurements in normal-weight and overweight/obese individuals. The limitations of bone densitometers have been frequently addressed. ...

Authors: Rhonda A Brownbill and Jasminka Z Ilich

Identification of hip fracture patients from radiographs using Fourier analysis of the trabecular structure: a cross-sectional study

This study presents an analysis of trabecular bone structure in standard radiographs using Fourier transforms and principal components analysis (PCA) to identify contributions to hip fracture risk.

Authors: Jennifer S Gregory, Alison Stewart, Peter E Undrill, David M Reid and Richard M Aspden

Histologic assessment of biliary obstruction with different percutaneous endoluminal techniques

Despite the sophisticated cross sectional image techniques currently available, a number of biliary stenosis or obstructions remain of an uncertain nature. In these pathological conditions, an "intrinsic" pari...

Authors: Michele Rossi, Vito Cantisani, Filippo Maria Salvatori, Alberto Rebonato, Laura Greco, Luigi Giglio, Giampiero Guido, Elisa Pagliara and Vincenzo David

Diagnostic accuracy of ultrasonography compared to unenhanced CT for stone and obstruction in patients with renal failure

To determine accuracy of ultrasound (US) kidney, ureter and bladder (KUB) compared to un-enhanced helical CT (UHCT) in patients with renal failure in the diagnosis of stone and obstruction.

Authors: M Hammad Ather, Aftab H Jafri and M Nasir Sulaiman

Coronary age as a risk factor in the modified Framingham risk score

Clinical guidelines emphasize risk assessment as vital to patient selection for medical primary intervention. However, risk assessment methods are restricted in their ability to predict further coronary events...

Authors: Enrique F Schisterman and Brian W Whitcomb

Angiographic findings and clinical implications of persistent primitive hypoglossal artery

The primitive hypoglossal artery (PHA) is a rare vascular anomaly, which belongs to the group of carotid-basilar anastomosis that may occur in adults.

Authors: Marianna Vlychou, Marios Georganas, Georgios Spanomichos, Panagiotis Kanavaros, Christos Artinopoulos and Georgios M Zavras

Is fasting a necessary preparation for abdominal ultrasound?

To study the effect of fasting on the technical success of abdominal ultrasound examination.

Authors: Tariq Sinan, Hans Leven and Mehraj Sheikh

CT features in abdominal tuberculosis: 20 years experience.

Abdominal tuberculosis (TB) is endemic in the developing world and is reemerging in the West. Since computed tomography (CT) has the ability to demonstrate changes in the peritonium, mesentry, lymphnodes, bowe...

Authors: Tariq Sinan, Mehraj Sheikh, Salwa Ramadan, Sukhpal Sahwney and Abdulla Behbehani

Dynamic contrast-enhanced magnetic resonance imaging of the sarcopenic muscle

Studies about capillarity of the aged muscle provided conflicting results and no data are currently available about the magnetic resonance imaging (MRI) in vivo characteristics of the microvascular bed in aged ra...

Authors: Elena Nicolato, Paolo Farace, Roberto M Asperio, Pasquina Marzola, Ernesto Lunati, Andrea Sbarbati and Francesco Osculati

Endovascular treatment of huge saccular abdominal aortic aneurysm in a young Behcet patient: mid-term result

Abdominal aortic aneurysm formation is among the arterial complications of Behcet's disease. Weakness and fragility of aortic walls leads to the development of arterial complications like pseudoaneurysms.

Authors: Ramazan Kutlu, Oner Gulcan, Ahmet Akbulut, Riza Turkoz and Tamer Baysal

Observer variation in chest radiography of acute lower respiratory infections in children: a systematic review

Knowledge of the accuracy of chest radiograph findings in acute lower respiratory infection in children is important when making clinical decisions.

Authors: George H Swingler