Does the SUVmax of FDG-PET/CT Correlate with the ADC Values of DWI in Musculoskeletal Malignancies?
Purpose: To evaluate the correlation of maximum standardized uptake values (SUVmax) of18F-Fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) with the apparent diffusion coefficient (ADC) of diffusion weighted imaging (DWI) in musculoskeletal malignancies.Methods: Institutional ethics committee approved this retrospective study. Twenty-seven patients (mean age: 44.85 ± 24.07; 17 men and 10 women) with a total of 29 musculoskeletal tumors underwent both FDG-PET/CT and DWI between January 2017 and March 2020. Region-of-interest (ROI)-based maximal standardized uptake values (SUVmax) of the...
Source: Journal of the Belgian Society of Radiology - February 24, 2021 Category: Radiology Source Type: research

A Curious Case of Recurrent Abdominal Wall Infections
An 82-year-old male was transferred for an abdominal CT scan for chronic cutaneous fistulation at the level of the right abdominal wall. Previous CT and ultrasound imaging described recurrent collections in the right abdominal wall, requiring CT guided abscess drainage. The abdominal CT scan revealed an abscess in between the internal oblique and transversus abdominis muscle layers of the right flank, with significant fat stranding and loss of the intermuscular fat planes (Figure 1). Inside this abscess, we notice a spontaneous hyperdense nodular lesion (Hounsfield Units 130), which doesn ’t enhance after contrast in...
Source: Journal of the Belgian Society of Radiology - February 24, 2021 Category: Radiology Source Type: research

Clival Chordoma: A Rare Finding in Children
Teaching point: Clival chordoma is a rare find in children, presenting as a locally destructive, T2 hyperintense, and strongly enhancing mass. Published on 2021-02-22 11:29:01 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - February 22, 2021 Category: Radiology Source Type: research

Does the SUVmax of FDG-PET/CT correlate with the ADC values of DWI in musculoskeletal malignancies: A single center study
Purpose: To evaluate the correlation of maximum standardized uptake values (SUVmax) of18F-Fluorodeoxyglucose-positron emission tomography/computed tomography (FDG-PET/CT) with the apparent diffusion coefficient (ADC) of diffusion weighted imaging (DWI) in musculoskeletal malignancies.Methods: Institutional ethics committee approved this retrospective study. Twenty-seven patients (mean age: 44.85 ± 24.07; 17 men and 10 women) with a total of 29 musculoskeletal tumors underwent both FDG-PET/CT and DWI between January 2017 and March 2020. Region-of-interest (ROI)-based maximal standardized uptake values (SUVmax) of the...
Source: Journal of the Belgian Society of Radiology - February 22, 2021 Category: Radiology Source Type: research

Radiological Signs in Traumatic Cervical Facet Joint Dislocations
Unilateral cervical facet joint dislocation (UCFJD) is the most frequently missed cervical spine injury on plain radiographs. If left untreated, UCFJD can progress to bilateral cervical facet joint dislocation. Given the complexity of cervical facet joint dislocations, radiologists rely on metaphorical signs to identify them on radiographs. The “Bowtie” and “laminar space” signs represent UCFJD on plain radiographs. The “reversed hamburger”, “naked facet” and “headphones” signs represent cervical facet joint dislocations on axial cross-sectional imaging. Illustrat...
Source: Journal of the Belgian Society of Radiology - February 16, 2021 Category: Radiology Source Type: research

Performance of Low-Dose Chest CT as a Triage Tool for Suspected COVID-19 Patients
Purpose: To investigate the role of low-dose chest computed tomography (CT) imaging  in the triage of patients suspected of coronavirus disease 2019 (COVID-19) in an emergency setting.Materials and Methods: Data from 610 patients admitted to our emergency unit from March 20, 2020, until April 11, 2020, with suspicion of COVID-19 were collected. Diagnostic values of low-dose chest CT for COVID-19 were calculated using consecutive  reverse-transcription polymerase chain reaction (RT-PCR) tests and bronchoalveolar lavage (BAL) as reference. Comparative analysis of the 199 COVID-19 positive versus 411 ...
Source: Journal of the Belgian Society of Radiology - February 16, 2021 Category: Radiology Source Type: research

Giant Tug Lesion of the Soleus
Teaching point: A giant soleus tug lesion is a benign pseudo-tumoral excrescence at  the attachment of the soleus muscle at the posterior upper third of the tibia. Published on 2021-02-15 12:25:19 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - February 16, 2021 Category: Radiology Source Type: research

Idiopathic Tumoral Calcinosis
Teaching Point: The imaging clues to differentiate idiopathic tumoral calcinosis from  other calcified soft tissue lesions include: pseudotumoral appearance with mass effect, bone erosion with intra-osseous protrusion of calcification, lobulated morphology, and peri-articular location on the extensor side. Published on 2021-02-09 13:14:55 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - February 10, 2021 Category: Radiology Source Type: research

Bronchial Artery Embolization in Life- Threatening Hemoptysis: Outcome and Predictive Factors
Conclusion: Bronchial artery embolization is a safe and effective procedure for controlling bleeding in life-threatening hemoptysis. However, low clinical success   rate was noted in patients with unstable hemodynamics and coagulopathy, while multiple vessel embolization was associated with higher clinical success. Published on 2021-02-01 10:10:44 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - February 1, 2021 Category: Radiology Source Type: research

Retrocardiac Lucency in Neonates: Air Trapped in the Pulmonary Ligament
Air trapped in neonates ’ pulmonary ligament is often the consequence of positive pressure ventilation and its typical radiographic appearance must be recognized in order to prevent the use of aggravating factors.TEACHING POINT: Air trapped in neonates ’ pulmonary ligament is often the consequence of positive pressure ventilation; its typical waterdrop appearance must be recognized on radiographs to prevent unnecessary additional measures. Published on 2021-01-29 09:58:36 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - January 29, 2021 Category: Radiology Source Type: research

Endovascular Repositioning of a Central Venous Port Malposition in the Internal Thoracic Vein
Malpositioning of a central venous port in the internal thoracic vein can be difficult to check based on single-plane (PA) chest radiographs only, and can be managed by interventional radiology.Teaching Point: Central venous port malposition in the internal thoracic vein must be detected on postero-anterior chest radiograph and can be repositioned via  endovascular procedure. Published on 2021-01-11 11:35:15 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - January 11, 2021 Category: Radiology Source Type: research

Cervical Adenoma Malignum in Third Trimester Pregnancy
Teaching Point: Adenoma malignum is a rare, non-HPV associated subtype of mucinous  adenocarcinoma of the cervix, of which we present an exceptional case that was discovered during the third trimester of pregnancy. Published on 2021-01-06 11:01:50 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - January 6, 2021 Category: Radiology Source Type: research

Kommerell Aneurysm
Teaching Point: Kommerell aneurysm is a rare differential diagnosis of mediastinal enlargement on a chest radiograph that requires CT for accurate diagnosis. Published on 2021-01-04 12:49:29 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - January 4, 2021 Category: Radiology Source Type: research

Perigastric and Portal Venous Gas Induced by Vomiting
Teaching point: Portal venous gas is often associated with severe abdominal pathologies, but may be also encountered in less dramatic conditions such as vomiting. Published on 2020-12-07 09:26:09 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - December 7, 2020 Category: Radiology Source Type: research

A Rare Vascular Cause of Hoarseness
Teaching point: Hoarseness is a common condition that can be the initial symptom of cardiovascular disorder. Published on 2020-12-01 09:06:06 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - December 1, 2020 Category: Radiology Source Type: research

The T2 Dark Spot Sign in Endometrioma
Teaching Point: The T2 dark spot sign has low sensitivity but high specificity for endometrioma on MR imaging. Published on 2020-12-01 09:15:08 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - December 1, 2020 Category: Radiology Source Type: research

Remote Intracranial Hemorrhage after Cranio-Spinal Surgery. Report of Two Cases
Post-operative intracranial bleeding at a distance from the surgical site is a rare complication of both cranial and spinal surgeries and is referred to as remote intracranial hemorrhage (RIH). Bleeding typically occurs in the cerebellum. Simultaneous hemorrhages in different cranial compartments have been rarely observed. We herein report two cases of RIH, which showed different imaging patterns and clinical signs and symptoms. RIH are typically self-limiting and do not usually require treatment. Physicians must be aware of this benign entity which needs not be misdiagnosed with other conditions.Teaching point: Remote int...
Source: Journal of the Belgian Society of Radiology - November 30, 2020 Category: Radiology Source Type: research

Nasu-Hakola Disease
Teaching Point: Nasu-Hakola disease (NHD) is characterized by multiple bone cysts in the appendicular skeleton and progressive presenile dementia. Published on 2020-11-30 09:01:20 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 30, 2020 Category: Radiology Source Type: research

Differentiation between Cerebral Hemorrhage and Contrast Extravasation Using Dual Energy Computed Tomography after Intra-Arterial Neuro Interventional Procedures
Conclusion: DECT allows an early and accurate differentiation between cerebral hemorrhage and BBB disruption after intra-arterial neuro-interventional procedures. Published on 2020-11-25 11:18:50 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 25, 2020 Category: Radiology Source Type: research

Massive Benign Pneumatosis Intestinalis
Teaching point: CT may help distinguishing benign from life-threatening pneumatosis intestinalis. Published on 2020-11-24 12:47:01 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 24, 2020 Category: Radiology Source Type: research

Acute Coronary Artery Air-Embolism after Percutaneous Lung Biopsy
Teaching point: Early depiction of systemic air embolism after percutaneous lung biopsy allows for timely adequate management to prevent potentially fatal complications. Published on 2020-11-24 12:53:07 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 24, 2020 Category: Radiology Source Type: research

Diagnostic Performance of MRI to Differentiate Uterine Leiomyosarcoma from Benign Leiomyoma: A Meta-Analysis
Purpose: To perform a meta-analysis comparing the diagnostic performance of increased signal intensity on T1- and T2-weighted magnetic resonance images and apparent diffusion coefficient (ADC) values in differentiating uterine leiomyosarcoma (LMS) from benign leiomyoma (LM).Methods: A systematic literature search for original studies was performed using PubMed/MEDLINE, the Cochrane Library, Embase, and Web of Science. Data necessary for the meta-analysis was extracted from the selected articles and analyzed.Results: Eight studies with 795 patients met our predefined inclusion criteria and were included in the analysis. Inc...
Source: Journal of the Belgian Society of Radiology - November 24, 2020 Category: Radiology Source Type: research

Ipilimumab (Immune Checkpoint Inhibitors) Hypophysitis
Teaching Point: Hypophysitis is a side effect of Ipilimumab that should not be confused with other conditions on imaging, such as metastasis. Published on 2020-11-18 13:16:03 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 18, 2020 Category: Radiology Source Type: research

Muscle Herniation: An Often-Missed Pseudotumor
Teaching Point: Dynamic ultrasound and knowledge of a clinical history of a soft-tissue lump that increases in volume upon muscle contraction or weight-bearing are crucial in the diagnosis of muscle herniation. Published on 2020-11-13 09:53:40 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 13, 2020 Category: Radiology Source Type: research

BSR 2020 Annual Meeting: Program
Different times call for different measures. The COVID-19 pandemic has forced us to search for alternative methods to provide an annual meeting which is equally interesting and has quality. For the Belgian Society of Radiology (BSR) 2020 Annual Meeting, the sections on Abdominal Imaging, Thoracic Imaging and the Young Radiologist Section (YRS) joined forces to organize a meeting which is quite different from the ones we have organised in the past. We have chosen to create a compact – approximately 5 hour – and entirely virtual meeting with the possibility of live interaction with the speakers during the questio...
Source: Journal of the Belgian Society of Radiology - November 13, 2020 Category: Radiology Source Type: research

President ’s Welcome
Published on 2020-11-13 12:43:05 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 13, 2020 Category: Radiology Source Type: research

BSR Annual Meeting 2020
Published on 2020-11-13 12:46:56 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 13, 2020 Category: Radiology Source Type: research

Vessel Wall MRI in HIV-Associated Cerebral Angiitis
Teaching Point: Angiitis, an underestimated cause of stroke in HIV patients, can be diagnosed using vessel wall MRI which directly demonstrates arterial wall thickening and enhancement. Published on 2020-11-09 10:49:00 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 10, 2020 Category: Radiology Source Type: research

B-Cell Acute Lymphoblastic Leukaemia of the Uterus
Teaching Point: Uterine involvement of B-cell acute lymphoblastic leukaemia is exceedingly rare. Globular enlargement of the uterus with diffuse homogeneous signal intensity is suggestive for the diagnosis on magnetic resonance imaging (MRI) in clinically suspected cases. Published on 2020-11-09 10:57:56 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 10, 2020 Category: Radiology Source Type: research

Ossifying Subperiosteal Hematoma Caused by a Plexiform Neurofibroma
Teaching Point: Subperiosteal haemorrhage is a rare complication of a plexiform neurofibroma which may mimic a malignant peripheral nerve sheath tumour. Published on 2020-11-06 10:56:42 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 6, 2020 Category: Radiology Source Type: research

Impact of Superselective Renal Artery Embolization on Renal Function and Blood Pressure
Conclusion: Superselective embolization appears to be a safe procedure, but meticulous attention for AKI is required for patients who underwent embolization of more than one segmental artery. An attempt to minimize the extent of devascularization should be pursued to avoid postprocedural complications. Published on 2020-11-06 11:05:20 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - November 6, 2020 Category: Radiology Source Type: research

Craniofacial and Intracranial Langerhans Cell Histiocytosis
Main Teaching Point: Multiple osteolytic calvarial lesions in a child raise suspicion of Langerhans cell histiocytosis. Published on 2020-10-23 09:20:38 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - October 23, 2020 Category: Radiology Source Type: research

Fibroepithelial Polyp in a Duplicated Ureter
Teaching point: A fibroepithelial polyp is an intraluminal, long, slender neoplasm that frequently occurs in the ureteropelvic junction and upper ureter. Published on 2020-09-22 11:34:02 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 22, 2020 Category: Radiology Source Type: research

Diagnostic Value of Perfusion MR Imaging as a Potential Ancillary Test for Brain Death
Conclusion: DSC-MR perfusion imaging is a promising tool that may be used as a reliable add-on confirmatory diagnostic test for the brain death. Published on 2020-09-18 12:30:58 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 19, 2020 Category: Radiology Source Type: research

Pelvic Soft Tissue Aggressive Angiomyxoma
Teaching Point: Aggressive angiomyxoma is a rare and benign soft tissue lesion, characterized by a “whorled” or “layering” appearance on T2-weighted and post-gadolinium magnetic resonance. Published on 2020-09-18 12:32:49 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 19, 2020 Category: Radiology Source Type: research

Medial Epicondyle Avulsion Fracture with Joint Entrapment in Children
Teaching point: The mnemonic CRITOE is a must-know that describes the sequence of elbow ossification center appearance and stands for capitellum, radial head, internal epicondyle, trochlea, olecranon and external epicondyle. Published on 2020-09-16 08:47:42 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 16, 2020 Category: Radiology Source Type: research

Successful Whole-Body Spectral CT with Intra-Osseous Iodine Injection
Teaching point: Intra-osseous access for contrast medium injection represents an alternative route for emergency CT in patients with compromised venous access. Published on 2020-09-14 10:21:49 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 14, 2020 Category: Radiology Source Type: research

Giant Frontal Paranasal Mucocele: Case Report and Review of the Literature
This article reports a giant mucocele of the frontal sinus and reviews the literature. Important imaging clues pointing toward the diagnosis of a mucocele on computed tomography (CT) and magnetic resonance imaging (MRI) are a well-defined expansile mass, an intimate relationship with the frontal sinus, subtle peripheral rim enhancement, and slow progression on serial imaging. The density on CT and signal on MRI may vary along with the lesion content. The potential role of diffusion-weighted imaging should be elaborated in future reports. Published on 2020-09-11 09:27:05 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 11, 2020 Category: Radiology Source Type: research

Kiloh-Nevin Syndrome
Teaching point: The Kiloh-Nevin Syndrome is a rare entrapment syndrome of the median nerve, with a distinct muscle edema pattern of the forearm. Published on 2020-09-11 09:34:32 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 11, 2020 Category: Radiology Source Type: research

Oily Ascites Revealing a Spontaneous Rupture of a Mature Ovarian Cystic Teratoma
Teaching point: Ovarian teratoma rupture can manifest clinically as an acute or chronic syndrome, associated with specific imaging features, both characterized by intra-abdominal fatty fluid. Published on 2020-09-11 09:40:44 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 11, 2020 Category: Radiology Source Type: research

Carcinoid Heart Disease on Computed Tomography
Teaching Point: Carcinoid tumors can release hormones responsible of cardiac valves fibrosis known as carcinoid heart disease. Published on 2020-09-11 09:48:27 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 11, 2020 Category: Radiology Source Type: research

Outcome of Percutaneous Intervention in Dysfunctional Loop versus Straight Arteriovenous Grafts in Hemodialysis Patients
Conclusion: Our study suggests there is no different patency outcome between straight and loop arteriovenous grafts after PTA. Published on 2020-09-09 11:54:06 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 10, 2020 Category: Radiology Source Type: research

Moyamoya Disease Revealed by Ruptured Intraventricular Aneurysm
Teaching point: Narrowing and occlusion of the distal carotids in Moyamoya causes a change in blood flow dynamics, increasing the risk for intracranial aneurysm formation. Published on 2020-09-09 11:59:41 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 10, 2020 Category: Radiology Source Type: research

Early Chest Imaging in Patients with Puumala Hantavirus Infection
Conclusions: Early CRX commonly showed linear atelectasis and small pleural effusion in Puumala virus infected patients above 30 years of age. Chest HRCT most frequently showed atelectasis and smooth interlobular septal thickening. While uncommon, early and severe pulmonary involvement can be associated with Puumala virus infection, albeit these findings are not specific. Published on 2020-09-04 11:02:39 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - September 4, 2020 Category: Radiology Source Type: research

Hazardous Removal of a Misplaced Nasogastric Tube
Teaching point: Careful analysis of tubes positioning on chest X-ray not only reveals misplacement but also helps to plan a safe removal. Published on 2020-08-05 12:37:02 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - August 13, 2020 Category: Radiology Source Type: research

The “Tail Sign” in Intramuscular Schwannoma
Teaching point: This case emphasizes the importance of the “tail sign” to sort the differential diagnosis of soft tissue tumors by highly suggesting schwannoma. Published on 2020-08-03 09:16:06 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - August 3, 2020 Category: Radiology Source Type: research

Juvenile Fibroadenoma in a Four-Month-Old Male Infant
Teaching point: As juvenile fibroadenoma is radiologically indistinguishable from a (malignant) phyllodes tumor, a core biopsy is decisive for both treatment and follow-up. Published on 2020-07-22 13:02:22 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - July 22, 2020 Category: Radiology Source Type: research

Characterization of Liver Metastases During Catheter-Directed Liver Interventions: A Comparison between Dual Phase Cone-Beam Computed Tomography and Conventional Contrast-Enhanced Computed Tomography
Conclusions: DP-CBCT of the liver may demonstrate larger metastatic tumor burden and lesion size with a variable contrast enhancement compared to CE-CT. Published on 2020-07-08 09:38:51 (Source: Journal of the Belgian Society of Radiology)
Source: Journal of the Belgian Society of Radiology - July 8, 2020 Category: Radiology Source Type: research

A Retrospective Comparison of ACL Tear and Mucoid Degeneration MRI Findings and an Emphasis on Evaluating of ACL, Blumensaat, and PCL Angles
Objective: To determine MRI findings that can differentiate anterior cruciate ligament (ACL) tears from mucoid degeneration.Material and Methods: Thirty-seven patients with complete ACL tears and 43 with ACL mucoid degeneration were included in this study. Discontinuity, the abnormal signal intensity of the ACL on fat-saturated-PD weighted images, contusions, a deep lateral femoral notch, anterior tibial translation, uncovered posterior horn of the lateral meniscus, a celery stalk appearance, thickening, ganglion cysts, intraosseous cysts, the ACL, Blumensaat, and posterior cruciate ligament (PCL) angles were evaluated. Op...
Source: Journal of the Belgian Society of Radiology - July 3, 2020 Category: Radiology Source Type: research

The Modified Stenver ’s View for Cochlear Implants – What do the Surgeons Want to Know?
Despite developments in electrophysiological testing, imaging remains the standard method to determine cochlear implant positioning. Whilst cone beam computed tomography is optimal, modified Stenver radiographs are easier to perform and are therefore commonly used. With recent debate as to the need for routine imaging in uncomplicated cases, the radiologist is increasingly faced with cases of abnormal anatomy or surgical error.The primary interest is the positioning of the electrode array within the cochlea. This includes evidence of tip roll over or kinking and depth of electrode insertion, as both are independent predict...
Source: Journal of the Belgian Society of Radiology - July 3, 2020 Category: Radiology Source Type: research