Mats Geijer

Mats Geijer
University of Gothenburg | GU · Department of Radiology

M.D., Ph.D.

About

137
Publications
32,836
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
2,353
Citations
Additional affiliations
October 2018 - present
University of Gothenburg
Position
  • Professor
March 2013 - present
Lund University
Position
  • Professor (Associate)

Publications

Publications (137)
Article
Objectives: To study the agreement between clinical axial spondyloarthritis (axSpA) diagnoses and fulfilment of the Assessment of SpondyloArthritis international Society (ASAS) axSpA and modified New York (mNY) classification criteria, and to compare disease/health status between axSpA subtypes. Method: Patients with prevalent, clinical axSpA at...
Article
Background Ankylosing spondylitis (AS) is characterised by spinal bone formation and enthesitis. Whether patients with spinal bone formation have a generalised bone formation phenotype also involving the peripheral entheses is not fully known. Objectives To assess in cross-sectional analyses the association between chronic ultrasound (US) lesions...
Article
Full-text available
Background Due to the paucity of scientific evidence, it is unclear among pulmonologists and physicians in critical care units if and when splenomegaly in novel coronavirus disease (2019) (COVID-19) patients is worrisome. This study aims to evaluate the significance of splenic volume during COVID-19 infection with or without cytokine storm and corr...
Article
Full-text available
Background Based on clinical and genetic associations, axial spondyloarthritis (axSpA) and inflammatory bowel disease (IBD) are suspected to have a linked pathogenesis. Gut dysbiosis, intrinsic to IBD, has also been observed in axSpA. It is, however, not established to what degree gut dysbiosis is associated with axSpA disease severity. The objecti...
Article
Full-text available
The most common indications for magnetic resonance imaging (MRI) of the brachial plexus (BP) are traumatic injuries. The role of MRI of the BP has increased because of recent trends favoring earlier surgery. Determining preganglionic vs. postganglionic injury is essential, as different treatment strategies are required. Thus, MRI of the BP should b...
Article
Full-text available
For magnetic resonance imaging (MRI) of non-traumatic brachial plexus (BP) lesions, sequences with contrast injection should be considered in the differentiation between tumors, infection, postoperative conditions, and post-radiation changes. The most common non-traumatic inflammatory BP neuropathy is radiation neuropathy. T2-weighted images may he...
Article
Full-text available
Introduction After surgery for distal femur fractures in elderly patients, weight-bearing is commonly restricted. Immediate non-restrictive weight-bearing might have beneficial effects. There are no randomized studies on the topic. The purpose of this study was to compare the functional outcome between immediate full weight-bearing (FWB) as tolerat...
Article
Full-text available
Acta Radiologica celebrates its 100th anniversary in 2021. In this article, the foundation of the journal and its editors are described. During 100 years, the manuscript structure changed from single-author verbose monographs to multi-author collaborations on statistically analyzed research subjects. The authorship changed from purely Nordic author...
Article
Full-text available
During the last 100 years, musculoskeletal radiology has developed from bone-only radiography performed by everyone to a dedicated subspecialty, still secure in its origins in radiography but having expanded into all modalities of imaging. Like other subspecialties in radiology, it has become heavily dependent on cross-sectional and functional imag...
Article
Full-text available
An increased prevalence of obstructive sleep apnoea (OSA) has been suggested in patients with ankylosing spondylitis (AS) in a few controlled studies. We aimed to study the prevalence of OSA compared to controls and to investigate if disease-related and non-disease-related factors were determinants of OSA in AS patients. One hundred and fifty-five...
Article
Full-text available
Objective Injuries to the wrist are, due to its small size and complex anatomical structures, difficult to assess by MR, and surgical interventions such as diagnostic arthroscopy are often necessary. Therefore, improved visualization using non-invasive methods could be of clinical value. As a first step of improvement, the purpose of this study was...
Article
Background An increased prevalence of obstructive sleep apnoea (OSA) has been suggested in ankylosing spondylitis (AS), but few controlled studies have been performed. Objectives We thus aimed to study the prevalence of OSA in patients with AS compared to controls and to study if disease-related and non-disease-related factors were determinants of...
Conference Paper
Full-text available
Background Based on clinical and genetic associations, axial spondyloarthritis (axSpA) and inflammatory bowel disease (IBD) are suspected to have a linked pathogenesis. Gut dysbiosis, intrinsic to IBD, has also been observed in axSpA. It is, however, not established to what degree gut dysbiosis is associated with axSpA disease severity. Objectives...
Article
Full-text available
Introduction: Percutaneous ultrasound-guided core needle biopsy is a well-established method in the diagnosis of musculoskeletal tumors. It is unclear which factors contribute the most to a successful biopsy. The aim of the study was to determine the value of ultrasound-guided core needle biopsy of solid lesions in the musculoskeletal system using...
Article
Background: Wrist ligaments are challenging to visualize using magnetic resonance imaging (MRI). Injuries involving the scapholunate ligament (SLL), the lunotriquetral ligament (LTL), and the triangular fibrocartilage complex (TFCC) are common and difficult to diagnose, often requiring diagnostic arthroscopy. Purpose: To compare the visualizatio...
Article
Full-text available
Objective Both psoriatic arthritis (PsA) and rheumatoid arthritis (RA) have a significant impact on quality of life, but few reports have compared the two diseases. The current study assessed health-related quality of life (HRQoL) in PsA at diagnosis and after five years compared with early rheumatoid arthritis (RA) and a matched general population...
Article
Full-text available
Objectives Antibodies against anti-CD74 are related to axial spondyloarthritis (axSpA). The objectives were to study; 1) IgA anti-CD74 in radiographic (r)-axSpA patients in the Backbone cohort and to calculate the sensitivity and specificity of anti-CD74, 2) the fluctuation of IgA anti-CD74 levels in prospectively collected samples, 3) and to explo...
Article
Full-text available
Bone marrow edema (BME) is one of the most common findings on magnetic resonance imaging (MRI) after an ankle injury but can be present even without a history of trauma. This article will provide a systematic overview of the most common disorders in the ankle and foot associated with BME. The presence of BME is an unspecific but sensitive sign of p...
Article
Full-text available
Objectives: To study baseline serum hepatocyte growth factor (s-HGF) as a predictor of spinal radiographic progression overall and by sex and to analyse factors correlated to changes in s-HGF in patients with AS. Methods: At baseline and the 5-year follow-up, s-HGF was analysed with ELISA. Spinal radiographs were graded according to modified Sto...
Article
Full-text available
Background Restoration of a correct biomechanical situation after total hip arthroplasty is important. Purpose To evaluate proximal femoral symmetry of acetabular and femoral offset and femoral neck anteversion pre- and postoperatively in hip arthroplasty by semi-automated 3D-CT and to validate the software measurements by inter- and intraobserver...
Article
Full-text available
The muscle specific isoform of the supervillin protein (SV2), encoded by the SVIL gene, is a large sarcolemmal myosin II- and F-actin-binding protein. Supervillin (SV2) binds and co-localizes with costameric dystrophin and binds nebulin, potentially attaching the sarcolemma to myofibrillar Z-lines. Despite its important role in muscle cell physiolo...
Article
Objective Ankylosing spondylitis (AS) is associated with an elevated risk of cardiovascular disease (CVD) related to atherosclerosis, preceded by arterial stiffness. We aimed to examine common carotid artery (CCA) biomechanical properties using ultrasound to calculate β stiffness index (indicating arterial stiffness) and, a more recently developed...
Article
Full-text available
Background: Inferior placement of a femoral stem is predictive for early loosening and failure, but does restoration of the original hip anatomy benefit the function and survival of a total hip replacement? Methods: Seventy-five patients with primary unilateral hip osteoarthritis operated with an uncemented anatomical stem were randomized for ei...
Article
Full-text available
Background: Hepatic computed tomography (CT) with decreased peak kilovoltage (kVp) may be used to reduce contrast medium doses in patients at risk of contrast-induced acute kidney injury (CI-AKI); however, it increases image noise. To preserve image quality, noise has been controlled by X-ray tube loading (mAs) compensation (TLC), i.e. increased m...
Article
Full-text available
Aim: This study was carried out to compare different measurements of the oropharyngeal airway in patients aged over 40 years on cone beam computed tomography (CBCT) images. Materials and Methods: Seven hundred and five patients aged over 40 years were divided into three groups (40–49, 50–59, and ≥60 years). A comparative analysis of oropharyngeal a...
Article
Full-text available
Background Low peak kilovoltage (kV p ) computed tomography (CT) may be used to reduce contrast medium doses in patients at risk of contrast medium-induced acute kidney injury if image noise can be controlled by increasing X-ray tube loading (mAs). Purpose To evaluate objective and subjective image quality in 80-kV p CT with reduced contrast mediu...
Article
Objectives: To examine faecal calprotectin (F-calprotectin) levels and presence of anti-Saccharomyces cerevisiae antibodies (ASCA) and their associations with disease subtype and current status in axial SpA (axSpA). Methods: F-calprotectin and ASCA in serum were compared between consecutive patients with a clinical axSpA diagnosis, classified as...
Conference Paper
Full-text available
Background While inflammatory bowel disease (IBD) is a well-known comorbidity in axial spondyloarthritis (axSpA), little is known about the prevalence, drivers and impact of irritable bowel syndrome (IBS). In the general population, the IBS prevalence has been estimated to ∼11%.[1] Objectives To compare the frequency of gut symptoms meeting IBS cr...
Conference Paper
Background The ASAS axial SpondyloArthritis (axSpA) criteria encompass radiographic (r-axSpA) and non-radiographic (nr-axSpA) disease to enable classification early, while the modified New York criteria (mNY) for Ankylosing Spondylitis (AS) require radiographic sacroiliitis. Studies of agreement between clinical diagnoses of axSpA and classificatio...
Chapter
Several factors make image guidance necessary in fine-needle aspiration cytology (FNAC): A lesion is diffuse and difficult to palpate; the cytologist requires it for all deep-seated nonpalpable lesions; there may be sampling issues in a nonhomogeneous lesion with areas of different tissue characteristics (e.g., necrosis versus viable tumor or purel...
Article
Purpose: Most patients recover well from a distal radius fracture (DRF). However, approximately one-fifth have severe disability after 1 year when evaluated using the Disabilities of the Arm, Shoulder, and Hand (DASH) questionnaire. In the present study, we evaluated this subgroup of patients in our register with an inferior outcome. We hypothesiz...
Article
Objectives Inclusion body myositis is characterized by inflammatory and degenerative changes, but the temporal relation of these events is unknown. Materials and Methods In nineteen patients with inclusion body myositis muscle strength was correlated with inflammatory and degenerative findings on MRI and in muscle biopsies in three different muscl...
Article
Background Successful cardiac resynchronization therapy (CRT) requires appropriate left ventricular (LV) lead placement on a suitable segment of the free LV wall. Current guidelines suggest targeted lead placement, but the individual anatomy of the cardiac veins is often a limiting factor. Purpose To map cardiac veins with multidetector computed to...
Article
Full-text available
Background: Knowledge about predictors of new spinal bone formation in patients with ankylosing spondylitis (AS) is limited. AS-related spinal alterations are more common in men; however, knowledge of whether predictors differ between sexes is lacking. Our objectives were to study spinal radiographic progression in patients with AS and investigate...
Data
Supplementary Table 1 -Supplemental material for Impact of donor chest radiography on clinical outcome after lung transplantation
Article
Full-text available
Background Organ donation guidelines recommend a “clear” conventional bedside chest radiograph before lung transplantation despite only moderate accuracy for cardiopulmonary abnormalities. Purpose To evaluate the influence of donor image interpretation on lung transplantation outcome in recipients by following early and late complications, one-yea...
Article
Full-text available
Objectives: Double reading in diagnostic radiology can find discrepancies in the original report, but a systematic program of double reading is resource consuming. There are conflicting opinions on the value of double reading. The purpose of the current study was to perform a systematic review on the value of double reading. Methods: A systemati...
Article
Full-text available
Background: Studies have shown increased prevalence of osteoporosis and increased risk for vertebral fractures in patients with ankylosing spondylitis (AS). Measurements of bone mineral density (BMD) in the lumbar spine anterior-posterior (AP) projection may be difficult to interpret due to the ligamentous calcifications, and the lateral projectio...
Article
Lumbar spine radiography - unreliable diagnostic accuracy and negligible value for the patients In 2016 140 000 lumbar spine radiographies were performed in Sweden (14 000 per million inhabitants) to a cost of about 85 million SEK (≈8.5 million Euro) and a negligible value for the patients with low back pain. In the work-up of low back pain, when i...
Article
Objective: The objective of this study of distal radius fractures was to determine if a subchondral haematoma in an unfractured compartment predicts secondary osteoarthritis. Methods: In 1995-1997, 41 patients, 22 women, a median age of 41 years (20-57 years) with a displaced distal radius fracture underwent diagnostic wrist arthroscopy in addit...
Article
Objectives: To describe treatment patterns in the Swedish early psoriatic arthritis cohort (SwePsA) of the mono-/oligo-arthritic (M/O) and polyarthritis (P) and identify early predictive factors for treatment with disease-modifying anti-rheumatic (DMARD), non-steroidal anti-inflammatory drugs (NSAID), and tumour necrosis factor inhibition (TNFi) a...
Conference Paper
Full-text available
Background Inflammatory bowel disease (IBD) is a common comorbidity in axial spondyloarthritis. Objectives To study faecal calprotectin (F-calprotectin) levels and anti-Saccharomyces cerevisiae antibodies (ASCA) and their associations with disease status and gastrointestinal (GI) symptoms in axial spondyloarthritis. Methods Consecutive patients w...
Article
Background Recently, total hip arthroplasty (THA) has come to focus on restoration of individual anatomy including femoral neck anteversion and global offset (femoral and acetabular offset). Three-dimensional (3D) computed tomography (CT) data could provide a better basis for preoperative templating. The use of CT has been hampered by high radiatio...
Article
Full-text available
Background and purpose — During the last decades, treatment of distal radius fractures (DRFs) has changed, with surgical intervention being more common and with new techniques. We investigated whether this change has influenced the subjective outcome. Here we report, year by year, the 1-year score after a DRF over a 10-year-period, using a patient-...
Article
Objectives Thoracic spine radiography becomes more difficult with age. Tomosynthesis is a low-dose tomographic extension of radiography which may facilitate thoracic spine evaluation. This study assessed the added value of tomosynthesis in imaging of the thoracic spine in the elderly. Methods Four observers compared the image quality of 50 consecut...
Article
Full-text available
Spontaneous osteonecrosis of the knee (SONK) is a feared condition of unknown cause, in its classic form appearing in the medial femoral condyle in middle-aged or elderly subjects. Diagnosis with radiography is notoriously difficult with a long latency before typical changes appear. Magnetic resonance imaging (MRI) is regarded as a diagnostic tool...
Article
Purpose: To compare the patient-reported, clinical, and radiographic outcome of 2 methods of internal fixation in distal radius fractures. Methods: Fifty patients, mean age 56 years (range, 21-69 years) with primarily nonreducible or secondarily redisplaced distal radius fractures were randomized to open reduction internal fixation using volar l...
Article
Purpose: The aim of the study was to retrospectively evaluate the diagnostic imaging that potential lung donors undergo, the reader variability of image interpretation and its relevance for donation, and the potential information gained from imaging studies not primarily intended for lung evaluation but partially including them. Materials and met...
Article
Full-text available
Background A thorough quality analysis of radiologic performance is cumbersome. Instead, the prevalence of missed cervical hip fractures might be used as a quality indicator. Purpose To validate a computer-based quality study of cervical hip fracture radiography. Material and Methods True and false negative and positive hip trauma radiography dur...
Article
Background Iterative reconstruction (IR) is a recent reconstruction algorithm for computed tomography (CT) that can be used instead of the standard algorithm, filtered back projection (FBP), to reduce radiation dose and/or improve image quality. Purpose To evaluate and compare the image quality of low-dose CT of the lumbar spine reconstructed with...
Article
Purpose: To compare the patient-reported, clinical, and radiographic outcome of 2 methods of internal fixation in distal radius fractures. Methods: Fifty patients, mean age 56 years (range, 21-69 years) with primarily nonreducible or secondarily redisplaced distal radius fractures, were randomized to open reduction and internal fixation using volar...
Article
Objective/Hypothesis: In rheumatoid arthritis, resection of the ulnar head has been the gold standard for pain and dysfunction in the distal radioulnar joint (DRUJ). The ulnar head is today, however, considered to be essential for the wrist function and alternatives are being investigated. We present a 5-year clinical and radiological follow-up of...
Article
Rationale, aims and objectives: The process of transferring older, vulnerable adults from an elder care facility to the hospital for medical care can be an emotionally and physically stressful experience. The recent development of modern mobile radiography may help to ease this anxiety by allowing for evaluation in the nursing home itself. Up unti...
Article
Background The knowledge about what predicts progress of syndesmophytes that characterize patients with ankylosing spondylitis (AS) is limited. The strongest known predictor for radiographic progression in the spine is existing syndesmophytes at baseline. Objectives To study the radiographic progression in the spine in AS patients in total and by...
Article
Full-text available
Objectives: To evaluate metal artefact reduction (MAR) techniques from four computed tomography (CT) vendors in hip prosthesis imaging. Methods: Bilateral hip prosthesis phantom images, obtained by using MAR algorithms for single energy CT data or dual energy CT (DECT) data and by monoenergetic reconstructions of DECT data, were visually graded...
Article
The influence of experience in categorizing suspect and occult fractures on radiography compared to MRI and clinical outcome has not been studied. The aim of this study is to evaluate the importance of experience in diagnosing normal or suspect hip radiographs compared to MRI. Primarily reported normal or suspect radiography in 254 patients with lo...
Article
Background Computed tomography (CT) for evaluation of occult and suspect hip fractures has been proposed as a good second-line investigation. The diagnostic precision compared to magnetic resonance imaging (MRI) is unclear. PurposeTo compare the diagnostic performance of CT and MRI in a retrospective study on patients with suspect and occult hip fr...
Article
Background: Low kilovoltage (kVp) computed tomography (CT) may be used to reduce contrast medium dose in patients at risk of contrast nephropathy, at the cost of increased image noise. Purpose: To evaluate: (i) the impact of iterative reconstructions (Siemens SAFIRE) on low-contrast object detection to compensate for increased noise instead of i...
Article
Objective: To describe early radiographic findings in patients from the Swedish psoriatic arthritis (SwePsA) registry, progression of destruction, correlations with clinical disease variables, and predictors of destruction. Methods: Hand and foot radiographs were available for 72 of 197 SwePsA patients followed for 5 years. Clinical data were co...
Article
Pelvic fractures may occur together with hip fractures as a result of low energy trauma. It is unclear whether they do require special attention. There are conflicting results in the literature about the prevalence of both concomitant hip and pelvic fractures as well as exclusive pelvic fractures. It has been reported that hip fractures and obturat...
Article
Objectives: Abdominal radiography is frequently used in acute abdominal non-traumatic pain despite the availability of more advanced diagnostic modalities. This study evaluates the diagnostic accuracy of low-dose CT compared with abdominal radiography, at similar radiation dose levels. Methods: Fifty-eight patients were imaged with both methods...