Diuretic renography in hydronephrosis: renal tissue tracer transit predicts functional course and thereby need for surgery

Purpose  

The recognition of those hydronephrotic kidneys which require therapy to preserve renal function remains difficult. We retrospectively compared the ‘tissue tracer transit’ (TTT) of ^99mTc-mercaptoacetyltriglycine (^99mTc-MAG₃) with ‘response to furosemide stimulation’ (RFS) and with ‘single kidney function < 40%’ (SKF < 40%) to predict functional course and thereby need for surgery.     

Correlation of the cross-over ratio of the cross-over sign on conventional pelvic radiographs with computed tomography retroversion measurements

Objective  

To find a correlation between the cross-over ratio of the cross-over sign on conventional anteroposterior (AP) pelvic radiographs and retroversion measurements (‘roof-edge angle’ and ‘equatorial-edge angle) on computed tomography (CT) scans. This would facilitate the interpretation of the cross-over sign regarding the amount of acetabular retroversion.     

Twenty-degree-tilt radiography for evaluation of lateral humeral condylar fracture in children

Objective  

To investigate the efficacy of ‘20°-tilt anteroposterior (A-P) radiography’ in the assessment of lateral condylar fractures of the distal humerus.     

Correlated regions of cerebral blood flow with clinical parameters in Parkinson’s disease; comparison using ‘Anatomy’ and ‘Talairach Daemon’ software

Objectives  

We assign the anatomical names of functional activation regions in the brain, based on the probabilistic cyto-architectonic atlas by Anatomy 1.7 from an analysis of correlations between regional cerebral blood flow (rCBF) and clinical parameters of the non-demented Parkinson’s disease (PD) patients by SPM8. We evaluated Anatomy 1.7 of SPM toolbox compared to ‘Talairach Daemon’ (TD) Client 2.4.2 software.     

Evaluation of dynamic row-action maximum likelihood algorithm reconstruction for quantitative 15O brain PET

Objective  

A modified version of row-action maximum likelihood algorithm (RAMLA) using a ‘subset-dependent’ relaxation parameter for noise suppression, or dynamic RAMLA (DRAMA), has been proposed. The aim of this study was to assess the capability of DRAMA reconstruction for quantitative ¹⁵O brain positron emission tomography (PET).     

Evaluation of subsidence, chondrocyte survival and graft incorporation following autologous osteochondral transplantation

Purpose  

The aim of this study was to evaluate subsidence tendency, surface congruency, chondrocyte survival and plug incorporation after osteochondral transplantation in an animal model. The potential benefit of precise seating of the transplanted osteochondral plug on the recipient subchondral host bone (‘bottoming’) on these parameters was assessed in particular.     

Signal intensity in T2’ magnetic resonance imaging is related to brain glioma grade

Objectives  

T2’ values reflect the presence of deoxyhaemoglobin related to high local oxygen extraction. We assessed the feasibility of T2’ imaging to display regions with high metabolic activity in brain gliomas.     

Valid MR imaging predictors of prior knee arthroscopy

Purpose  

To determine whether fibrosis of the medial patellar reticulum (MPR), lateral patellar reticulum (LPR), deep medial aspect of Hoffa’s fat pad (MDH), or deep lateral aspect of Hoffa’s fat pad (LDH) is a valid predictor of prior knee arthroscopy.     

Radiologists’ responses to inadequate referrals

Objectives  

To investigate radiologists’ responses to inadequate imaging referrals.     

<Superscript>18</Superscript>F-FDG PET/CT in paediatric lymphoma: comparison with conventional imaging

Purpose  

In children with Hodgkin’s disease and non-Hodgkin’s lymphoma, the ability of ¹⁸F-fluoro-2-deoxy-D-glucose PET/CT and conventional imaging (CI) to detect malignant lesions and predict poor lesion response to therapy was assessed and compared.     

Current practice in shoulder pathology: results of a web-based survey among a community of 1,084 orthopedic surgeons

Purpose  

The aim of this study was to report orthopedic surgeons’ management of choice for difficult clinical scenarios of shoulder pathologies.     

Brain perfusion SPECT correlates with CSF biomarkers in Alzheimer’s disease

Purpose  

Our aim was to study the correlations between cerebrospinal fluid (CSF) biomarker levels such as β-amyloid 42 (Aβ₄₂), total and phosphorylated tau protein (T-tau and P-tau) and brain perfusion SPECT in Alzheimer’s disease (AD) using a voxel-based methodology.     

Visual assessment of posterior atrophy development of a MRI rating scale

Objective  

To develop a visual rating scale for posterior atrophy (PA) assessment and to analyse whether this scale aids in the discrimination between Alzheimer’s disease (AD) and other dementias.     

Deterioration of abstract reasoning ability in mild cognitive impairment and Alzheimer’s disease: correlation with regional grey matter volume loss revealed by diffeomorphic anatomical registration through exponentiated lie algebra analysis

Objective  

To determine which brain regions are relevant to deterioration in abstract reasoning as measured by Raven’s Colored Progressive Matrices (CPM) in the context of dementia.     

SPECT neuroimaging and neuropsychological functions in different stages of Parkinson’s disease

Purpose  

The present study investigated differences and associations between cortical perfusion, nigrostriatal dopamine pathway and neuropsychological functions in different stages of Parkinson’s disease (PD).     

Malalignment and cartilage lesions in the patellofemoral joint treated with autologous chondrocyte implantation

Purpose  

The aim of our current study is to present the 12.6 years’ follow-up results in patients with cartilage lesions of the patellofemoral joint, treated with autologous chondrocyte implantation (ACI) with the use of periosteum.     

Clinical features and 123I-FP-CIT SPECT imaging in drug-induced parkinsonism and Parkinson’s disease

Purpose  

To determine clinical predictors and accuracy of ¹²³I-FP-CIT SPECT imaging in the differentiation of drug-induced parkinsonism (DIP) and Parkinson’s disease (PD).     

Cardiac involvement in Wegener��s granulomatosis resistant to induction therapy

Objectives  

The aim of the study was to assess cardiac involvement in patients with Wegener’s granulomatosis (WG), who failed to achieve remission following >6 months induction therapy for life or organ threatening disease.     

In vivo imaging of astrocytosis in Alzheimer’s disease: an <Superscript>11</Superscript>C-<Emphasis Type="SmallCaps">L</Emphasis>-deuteriodeprenyl and PIB PET study

Purpose  

Astrocytosis is an important feature of the neuropathology of Alzheimer’s disease (AD), yet there is currently no way of detecting this phenomenon in vivo.     

An education and training programme for radiological institutes: impact on the reduction of the CT radiation dose

Objectives  

To establish an education and training programme for the reduction of CT radiation doses and to assess this programme’s efficacy.