Correction: Abdi et al. Visual Evaluation of Image Quality of a Low Dose 2D/3D Slot Scanner Imaging System Compared to Two Conventional Digital Radiography X-ray Imaging Systems. 2021, , 1932.

In the original publication [...

Visual Evaluation of Image Quality of a Low Dose 2D/3D Slot Scanner Imaging System Compared to Two Conventional Digital Radiography X-ray Imaging Systems.

Unlabelled: The purpose of this study was to assess the image quality of the low dose 2D/3D slot scanner (LDSS) imaging system compared to conventional digital radiography (DR) imaging systems. Visual image quality was assessed using the visual grading analysis (VGA) method. This method is a subjective approach that uses a human observer to evaluate and optimise radiographic images for different imaging technologies.

Quantitative Image Quality Metrics of the Low-Dose 2D/3D Slot Scanner Compared to Two Conventional Digital Radiography X-ray Imaging Systems.

Unlabelled: The aim of this study was to determine the quantitative image quality metrics of the low-dose 2D/3D EOS slot scanner X-ray imaging system (LDSS) compared with conventional digital radiography (DR) X-ray imaging systems. The effective detective quantum efficiency (eDQE) and effective noise quantum equivalent (eNEQ) were measured using chest and knee protocols.

Methods: A Nationwide Evaluation of X-ray Trends (NEXT) of a chest adult phantom and a PolyMethylmethacrylate (PMMA) phantom were used for the chest and knee protocols, respectively.

Intra-arterial lidocaine administration during uterine fibroid embolization to reduce the immediate postoperative pain: a prospective randomized study.

Background: To investigate if intra-arterial lidocaine administrated immediately after the embolisation endpoint reduces the pain.

Methods: Forty patients were randomised and 36 completed the study for purposes of analysis. In one group, the patients got 1% 10 ml lidocaine (100 mg) administered into each uterine artery immediately after embolisation with microspheres.

Correction to: Preliminary experience with the micro vascular plug for the treatment of pulmonary arteriovenous malformation: case series of four patients.

In the published article (Duvnjak et al. 2018) the statement under the subheading 'Consent for publication' is incorrect.

Incidence of primary spontaneous pneumothorax: a validated, register-based nationwide study.

Objectives: The incidence of primary spontaneous pneumothorax is partly unknown. Commonly quoted estimates were published decades ago and recent large-scale epidemiological publications lack validation. We validated the pneumothorax diagnosis in a national registry and estimated the incidence of primary spontaneous pneumothorax in young patients.

Long-Term Single-Center Retrospective Follow-Up After Embolization of Pulmonary Arteriovenous Malformations Treated Over a 20-year Period: Frequency of Re-canalization with Various Embolization Materials and Clinical Outcome.

Purpose: The present study is a register-based observational study of an unselected consecutive patient cohort with pulmonary arteriovenous malformations (PAVMs) from a single national hereditary hemorrhagic telangiectasia and PAVM embolization center. The aim was to investigate the frequency of re-embolizations and the clinical outcome after embolization with the use of different embolization materials further, to define which PAVM morphology and size of feeding arteries that most often were re-embolized, and to estimate the clinical outcome of the patients including those that were re-embolized.

Methods: The population was included from 1996 until 2016 and was made up of a total of 136 patients with 322 PAVMs.

COMPARISON OF RADIATION EXPOSURE TO THE PATIENT AND CONTRAST DETAIL RESOLUTIONS ACROSS LOW DOSE 2D/3D SLOT SCANNER AND TWO CONVENTIONAL DIGITAL RADIOGRAPHY X-RAY IMAGING SYSTEMS.

Purpose: To assess and compare the radiation dose and image quality of the low dose 2D/3D EOS slot scanner (LDSS) to conventional digital radiography (DR) X-ray imaging systems for chest and knee examination protocols.

Methods And Materials: The effective doses (ED) to the patient in the chest and knee clinical examination protocols for LDSS and DR X-ray imaging systems were determined using the dose area product and PCXMC Monte Carlo simulation software. The CDRAD phantom was imaged with 19 cm, and 13 cm thick Polymethyl Methacrylate (PMMA) blocks to simulate the chest and knees respectively of a patient of average adult size.

Preliminary experience with the micro vascular plug for the treatment of pulmonary arteriovenous malformation: case series of four patients.

Background: To describe the preliminary experience using Micro Vascular Plug (MVP) for treatment of pulmonary arteriovenous malformations (PAVMs) with small feeding arteries (3 -5 mm) in four patients with Hereditary Haemorrhagic Telangiectasia (HHT).

Material And Methods: One female and three male patients with PAVMs have been treated during 2017. The mean age was 32.

Bone density measurements adjacent to acetabular cups in total hip arthroplasty using dual-energy CT: an in vivo reliability and agreement study.

Background: Measuring bone mineral density (BMD) around acetabular prosthetic components with computed tomography (CT) is challenged by the complex anatomy and metal artifacts. Three-dimensional (3D) segmentation is required for the analysis, but it is usually not practically applicable on current CT workstations.

Purpose: To test the between-scan agreement and reliability of custom segmentation software for BMD measurements adjacent to cemented and uncemented acetabular cups in dual-energy CT (DECT).

Surgical treatment versus conventional chest tube drainage in primary spontaneous pneumothorax: a randomized controlled trial.

Objectives: Primary spontaneous pneumothorax frequently recurs after chest tube management. Evidence is lacking whether patients may benefit from surgery following their first episode.

Methods: We performed a multicentre, randomized trial and enrolled young, otherwise healthy patients admitted with their first episode of primary spontaneous pneumothorax and treated using conventional chest tube drainage.

[Interventional radiology in minimally invasive treatments].

Interventional radiology (IR) is a fast expanding field which includes vascular (arterial and venous) as well as non-vascular topics. IR is minimally invasive methods, which are performed under guidance of radiological modalities. The methods are in general patient-friendly and organ-sparing procedures and can often be performed on out-patient basis or with short admission to the hospital and with short reconvalescence and economic advantages compared with corresponding surgical treatments.

Intra- and inter-observer agreement and reliability of bone mineral density measurements around acetabular cup: a porcine ex-vivo study using single- and dual-energy computed tomography.

Background: Periprosthetic bone loss is considered to be a potentially contributing factor in aseptic loosening of acetabular hip components, but no studies have shown this association. The lack of association might be caused by insufficient image quality because of metal artifacts and challenges in measuring bone density (BMD) in complex anatomic structures which might be overcome using dual-energy computed tomography (DECT).

Purpose: To test inter- and intra-observer agreement and reliability of in-house segmentation software measuring BMD adjacent to acetabular cup and to compare measurements performed with single-energy CT (SECT) and DECT in cemented and cementless cups.

Cannabis increased the risk of primary spontaneous pneumothorax in tobacco smokers: a case-control study.

Objectives: Previous smaller case series suggested that cannabis smoking may cause spontaneous pneumothorax, but this finding remains controversial. We investigated the possible association between smoking tobacco and cannabis and the risk of having a primary spontaneous pneumothorax in a large, homogeneous cohort of young, healthy individuals.

Methods: In a case-control study, we prospectively investigated young (≤40 years) patients admitted in Western Denmark from 2009 to 2016 with their first episode of primary spontaneous pneumothorax.

Magnetic Resonance Signal Intensity Ratio Measurement Before Uterine Artery Embolization: Ability to Predict Fibroid Size Reduction.

Purpose: To evaluate whether the magnetic resonance imaging (MRI) signal intensity (SI) ratio between the dominant fibroid and the periphery striated muscle can predict fibroid volume reduction >50% after uterine fibroid embolization (UFE).

Materials And Methods: From October 2013 until May 2016, 52 patients were included in this prospective study. The SI ratio before UFE was calculated using circular region of interests placed on the dominant fibroid and the iliac muscle.

Familial cerebral abscesses caused by hereditary hemorrhagic telangiectasia.

In case of a cerebral abscess without known cause, Pulmonary arteriovenous malformations (PAVM) screening should be performed. If PAVM(s) is identified, Hereditary hemorrhagic telangiectasia (HHT) is very likely and should always be considered. This case shows the benefit of familial screening for HHT and PAVM.

[Polyorchidism is a rare cause of a scrotal mass].

In this case report we present a 14-year-old boy with two testicles in the right hemiscrotum - a case of polyorchidism. He did not have surgery for his condition, and his condition was followed according to the guidelines. In a study, 6.

Uterine fibroid embolization with acrylamido polyvinyl microspheres: prospective 12-month clinical and MRI follow-up study.

Background Uterine fibroid embolization (UFE) is an effective minimally invasive treatment aimed to obtain complete fibroid infarction. Purpose To evaluate the degree of fibroid infarction after embolization with acrylamido polyvinyl alcohol microspheres (Bead Block). Material and Methods This prospective study included 26 pre-menopausal women in the period October 2013 to January 2015.

Agreement and precision of periprosthetic bone density measurements in micro-CT, single and dual energy CT.

The objective of this study was to test the precision and agreement between bone mineral density measurements performed in micro CT, single and dual energy computed tomography, to determine how the keV level influences density measurements and to assess the usefulness of quantitative dual energy computed tomography as a research tool for longitudinal studies aiming to measure bone loss adjacent to total hip replacements. Samples from 10 fresh-frozen porcine femoral heads were placed in a Perspex phantom and computed tomography was performed with two acquisition modes. Bone mineral density was calculated and compared with measurements derived from micro CT.

Recurrent Primary Spontaneous Pneumothorax is Common Following Chest Tube and Conservative Treatment.

Introduction: Previous studies on primary spontaneous pneumothorax reported variable recurrence rates, but they were based on heterogeneous patient populations including secondary pneumothorax. We investigated young patients with primary spontaneous pneumothorax exclusively and used a national registry to track readmissions and calculate independent predictors of recurrence.

Methods: A prospective cohort study of consecutive young patients who were admitted over a 5-year period with their first episode of primary spontaneous pneumothorax and treated conservatively with a chest tube.

Interventional treatment of renal angiomyolipoma: immediate results and clinical and radiological follow-up of 4.5 years.

Background: Renal angiomyolipoma is rare, but many of these patients may have an acute debut with severe bleeding. These patients need urgent treatment with interventional embolization as an attractive option.

Purpose: To investigate the technical and clinical effect of this treatment and to evaluate long-term clinical outcomes with clinical control and radiological imaging.

Clinical Long-Term Outcome and Reinterventional Rate After Uterine Fibroid Embolization with Nonspherical Versus Spherical Polyvinyl Alcohol Particles.

Purpose: This study was designed to evaluate the long-term clinical outcome and frequency of reinterventions in patients with uterine fibroids treated with embolization at a single center using polyvinyl alcohol microparticles.

Methods: The study included all patients with symptomatic uterine fibroids treated with uterine fibroid embolization (UFE) with spherical (s-PVA) and nonspherical (ns-PVA) polyvinyl alcohol microparticles during the period January 2001 to January 2011. Clinical success and secondary interventions were examined.

High success rate after arterial renal embolisation.

Introduction: The objective of this study was to present patients who underwent either elective or acute renal embolisation in a single centre where embolisation was available at all hours.

Methods: The records of all patients who underwent transcatheter arterial embolisation (TAE) at Odense University Hospital from October 2010 to July 2013 were extracted retrospectively and examined to determine the indication for treatment, procedural details and complications. Patients were divided into four groups: renal cancer, trauma, angiomyolipoma (AML) and others.