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ROCOv2-radiology

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ROCOv2_2023_train_059903

STIR sagittal MRI of the cervical spine shows the remnant synchondrosis or fibrous plate between the apical ossicle and remainder of the odontoid process. There is also a minimal amount of fluid within the atlantodental interval.

ROCOv2_2023_train_059904

Axial view of chest CT showing left lower lobe lesion.

ROCOv2_2023_train_059905

PET-CT showing FDG uptake in left lower lobe.

ROCOv2_2023_train_059906

PET-CT showing FDG uptake in cecum.

ROCOv2_2023_train_059907

Abdominal CT scan showing annular cecal mass with evidence of perforation.

ROCOv2_2023_train_059908

Coronal view of abdominal CT scan showing cecal mass with evidence of perforation.

ROCOv2_2023_train_059909

Initial X-Ray in supine body position. The choice of lateral tilt was based on the initial X-Ray that was taken in supine body position. The targeted lateral position strategy was defined by selecting the less aerated lung to be positioned up and the more aerated lung to be positioned down. Please note the left-to-right lung asymmetry present on this initial X-Ray: unequivocally more opacities within the left lung

ROCOv2_2023_train_059910

Contrast-enhanced CT scan showed the abscess confined at the ventral aspect of the tongue with sublingual space cellulitis (thick arrow) and marked swelling of anterior floor of mouth was demonstrated (thin arrow).

ROCOv2_2023_train_059911

Contrast-enhanced CT scan demonstrated an abscess at left posterior tongue (arrow).

ROCOv2_2023_train_059912

Contrast-enhanced CT scan demonstrated an abscess at left posterior tongue with thyroglossal duct cyst (arrow) was also identified without feature of rim enhancement.

ROCOv2_2023_train_059913

Seven segments used to determine the location of the great saphenous vein. Using an axial image, we divided the region from the anterior edge of the tibia to the posteromedial edge into five segments (A, B, C, D, and E), and designated the segment that was anterior to the anterior edge as ‘AA’ and the segment that was posterior to the posterior edge as ‘P.’ The course of the great saphenous vein through these segments at heights 1–4 described in Fig. 1 was evaluated.

ROCOv2_2023_train_059914

The initial chest radiograph at our hospital shows a huge mass with multiple pleural nodules and pleural effusion in the right hemithorax.

ROCOv2_2023_train_059915

A Computed Tomography Scan of the Abdomen The arrow demarcates a thick-walled gallbladder with a rim of pericholecystic fluid present in the gallbladder fossa with a normal-appearing liver.

ROCOv2_2023_train_059916

A Computed Tomography Scan of the Pelvis The arrows show loss of normal mucosal pattern with an ahaustral appearance of the colon with normal wall thickness of the rectum. The perirectal fat planes appeared to be preserved.

ROCOv2_2023_train_059917

A CAT scan of the chest. A CAT scan of the chest demonstrating a large breast mass measuring 7.8 × 7.2 cm in size with associated left breast edema.

ROCOv2_2023_train_059918

Radiograph of an adult with knee pain showing an aggressive, mixed metaphyseal lesion in the distal femur, with various foci of confluent calcification. The lesion is breaking through the cortex, with calcification also in the soft tissues (arrow).

ROCOv2_2023_train_059919

A 50-year-old patient with knee pain and radiological findings indicating an aggressive lesion. Anteroposterior radiography of the knee, showing tapering of the cortical bone in the proximal tibia, presence of a mottled, mixed medullary lesion with an imprecise zone of transition, extending from the subchondral boné to the diaphysis. The main differential diagnosis is metastasis, hyperparathyroidism, and lymphoma. Laboratory tests confirmed the diagnosis of multiple myeloma.

ROCOv2_2023_train_059920

The catheter can be seen looping back and going upward at the junction of the right internal jugular vein and the right subclavian vein.

ROCOv2_2023_train_059921

Anteroposterior CT scout image of the right femur. The cortical widths of the medial proximal and distal fragments appear to be equal.

ROCOv2_2023_train_059922

Example of EATT and PATT measurement

ROCOv2_2023_train_059923

Coronary angiogram showing a 90% stenotic lesion of the proximal portion of the right coronary artery.

ROCOv2_2023_train_059924

Coronary angiogram showing 80-90% stenosis of the proximal to mid-portion of the left anterior descending artery along with diffuse disease in its entirety. Prior to bifurcation into its two small terminal branches, another 90% stenotic lesion is noted.

ROCOv2_2023_train_059925

Sagittal T1 postcontrast image of the brain: linear leptomeningeal enhancement along the ventral brainstem, the tectum, and the upper cervical spinal cord.

ROCOv2_2023_train_059926

Sagittal T1 postcontrast image of the cervical spine: linear leptomeningeal enhancement along the cervical and visualized upper thoracic spinal cord.

ROCOv2_2023_train_059927

Sagittal T1 postcontrast fat-suppressed image of the thoracic spine: linear leptomeningeal enhancement of the thoracic spinal cord and cauda equina nerve roots.

ROCOv2_2023_train_059928

Computed tomography revealed bulky greater horns of the hyoid bone which is in close proximity with body of fourth cervical vertebrae

ROCOv2_2023_train_059929

Preoperative brain magnetic resonance T2 image showing a lipid-like white band in the right upper eyelid (arrow). This band was estimated to exist in the orbicularis oculi muscle layer, and no band was observed in the left upper eyelid.

ROCOv2_2023_train_059930

In the postoperative brain magnetic resonance T2 image, the white band disappeared (arrow). This band was thought to be the yellowish band seen during surgery and was estimated to have been removed during surgery.

ROCOv2_2023_train_059931

Transverse section on a chest CT demonstrating the presence of tumor lesions in the right middle and lower lobes.

ROCOv2_2023_train_059932

On simple x-ray, signs of intestinal obstruction were found.

ROCOv2_2023_train_059933

CT scan of the abdomen showed a mass involving the mesentery at the edge of which lays a loop of small intestine with thickened wall.

ROCOv2_2023_train_059934

Axial contrast enhanced CT demonstrates a well marginated fat attenuation of the mesentery surrounding the mesenteric vessels. A halo of fat is preserved around the mesenteric vessels and nodules. The lesion is closely related to the adjacent opacified small bowel which is peripherally displaced. The fatty mass is delineated by a hyperdense stripe and accompanied by multiple small nodules.

ROCOv2_2023_train_059935

Diffuse haziness and increased density of a thickened jejunal mesentery. There is smooth displacement of the adjacent bowel loops. The mesenteric vessels course through the lesion without distortion.

ROCOv2_2023_train_059936

Axial contrast enhanced CT image of the mid abdomen shows a heterogeneous fibrofatty mass within the root of the mesentery containing a focus of calcification.

ROCOv2_2023_train_059937

Virtual implant planning showing the implant sites with ≤4.0 mm bone in bucco-oral dimension, as measured on cone-beam computer tomography (CBCT) cross-sectional image.

ROCOv2_2023_train_059938

Postoperative chest X-ray showing complete lung re-expansion.

ROCOv2_2023_train_059939

Pancreatic duct dehiscence with extravasation of contrast.

ROCOv2_2023_train_059940

Normal chest radiograph film without any mediastinal lymphadenopathy.

ROCOv2_2023_train_059941

CT Scan of the thorax showing no abnormality in the lung parenchyma and no mediastinal lymphadenopathy.

ROCOv2_2023_train_059942

Chest X-ray showing an elevated right hemidiaphragm.

ROCOv2_2023_train_059943

Preoperative CT scan showing thickened small bowel loops in the right hemithorax with air specks in the bowel wall suggesting a strangulated diaphragmatic hernia.

ROCOv2_2023_train_059944

Cervical length with cerclage in situ by transvaginal ultrasound.

ROCOv2_2023_train_059945

Chest radiograph shows multiple confluent irregular opacities (arrow) in right upper lobe. There are no remarkable findings in hilar region with shadow of aortic arch (arrowhead).

ROCOv2_2023_train_059946

Multiple hyperechoic elements with shadow back.

ROCOv2_2023_train_059947

Appearance on “bouquet of flowers.”

ROCOv2_2023_train_059948

Stricture of the distal anterior urethra.

ROCOv2_2023_train_059949

SPECT/CT and lymphoscintigraphy fusion. Right tonsillar tumor with a sentinel lymph node at level II on the right side.

ROCOv2_2023_train_059950

PNS lead positions prior to lead fractures. One lead was inserted on the radial nerve for pain in the posterior antebrachial cutaneous territory (a), and another was fixed on the medial cord for pain in the medial antebrachial cutaneous dermatome (b). PNS: peripheral nerve stimulation.

ROCOv2_2023_train_059951

Lead positions after the PNS revision procedure. A new lead was inserted on the medial cord. The lead was inserted into the trunk side to prevent damage due to joint movement. PNS: peripheral nerve stimulation.

ROCOv2_2023_train_059952

Ultrasound-guided PNS system implantation. The Tuohy needle (arrow-head) was inserted with a conventional infraclavicular approach, and the needle tip was placed between the axillary artery and the medial cord. After a 10-ml normal saline injection, the lead (arrow) was inserted until resistance was felt. The lead’s proper position was settled with repeated electrical stimulation during lead withdrawal. PM: pectoralis major muscle, Pm: pectoralis minor muscle, MC: medial cord, LC: lateral cord, A: axillary artery, V: axillary vein, PC: posterior cord, PNS: peripheral nerve stimulation.

ROCOv2_2023_train_059953

Preoperative panoramic radiographic view.

ROCOv2_2023_train_059954

Postoperative panoramic radiographic view.

ROCOv2_2023_train_059955

Prebronchoscopy chest X-ray.

ROCOv2_2023_train_059956

Postbronchoscopy chest X-ray.

ROCOv2_2023_train_059957

Calcifications seen over right upper abdomen on radiograph.

ROCOv2_2023_train_059958

Bilateral Haller cells on coronal plane of CBCT

ROCOv2_2023_train_059959

Measurement of Haller cell in coronal plane

ROCOv2_2023_train_059960

Transesophageal echocardiographic view of mitral valve: moderate-severe mitral regurgitation with jet originating centrally and directed towards lateral wall of the left atrium is seen.

ROCOv2_2023_train_059961

A 51-year-old female with an 8-year history of T2DM. Soft plaques were identified in the left descending coronary artery with an eccentric and unsmooth surface (black arrow). The CT value was 28 Hu. CT, computed tomography; T2DM, type 2 diabetes mellitus.

ROCOv2_2023_train_059962

Target volume definition on CT.

ROCOv2_2023_train_059963

CT scan of MPS II, showing large bulky tongue, flat palate, prominent teeth, short neck, and absence of cervical lordosis.

ROCOv2_2023_train_059964

CT scan of MPS II showing collapsed trachea, suggestive of tracheomalacia.

ROCOv2_2023_train_059965

B mode Ultrasound showing a transverse view of the Vastus Lateralis in a healthy individual

ROCOv2_2023_train_059966

B mode Ultrasound showing a transverse view of the Vastus Lateralis in a patient with Inclusion Body Myopathy. Muscle echogenicity is increased (appears brighter) and there is loss of muscle bulk

ROCOv2_2023_train_059967

Abdominal contrast-enhanced computerized tomography findings. Abdominal contrast-enhanced computerized tomography (CT) revealed multiple low density nodular lesions scattered in the liver parenchyma, involving the right lobe and left medial segment, with inhomogeneous enhancement.

ROCOv2_2023_train_059971

Voiding cystourethrography showing dog ear herniation of bladder

ROCOv2_2023_train_059972

Magnetic resonance imaging (parasagittal section) showing left inguinoscrotal bladder herniation

ROCOv2_2023_train_059973

Transverse section magnetic resonance image demonstrating seminal vesicle abscess (arrowed).

ROCOv2_2023_train_059974

CECT abdomen showing an inhomogeneously dense right suprarenal mass (TRANSVERSE SECTION).

ROCOv2_2023_train_059975

CECT abdomen showing an inhomogeneously dense right suprarenal mass (CORONAL SECTION).

ROCOv2_2023_train_059976

MRI abdomen showing a hyperintense right suprarenal mass (TRANSVERSE SECTION).

ROCOv2_2023_train_059977

MRI abdomen showing a hyperintense right suprarenal mass (CORONAL SECTION).

ROCOv2_2023_train_059978

Axial section of an MRI in weighted sequence T1 with gadolinium injection showing irregular contrast uptake of epidural space with heterogeneity of the bone structure vertebral.

ROCOv2_2023_train_059979

Computed tomography scan showing an irregularly shaped 12×10×10-cm expansion mass beside the 7th thoracic vertebra. Disappearance of the cortex and lytic changes in the 7th ribs are demonstrated. Atelectasis of the right lower lobe is also evident.

ROCOv2_2023_train_059980

Coronal CT scan revealing pneumatization of the superior left turbinate (arrow).

ROCOv2_2023_train_059981

Coronal view of contrast-enhanced CT scan image arterial phase: yellow arrow shows the jejunal lesion; red arrow shows the contrast enhancement of superior mesenteric vein.

ROCOv2_2023_train_059982

Axial CT scan with contrast of the neck showing the lesion with peripheral enhancement and hypodense necrotic center in the subcutaneous tissue of the posterior neck triangle.

ROCOv2_2023_train_059983

Lateral radiograph of three-year-old boy showing olecranon fracture.

ROCOv2_2023_train_059984

Repeat lateral radiograph of the same elbow twelve days later. The olecranon fracture is more defined.

ROCOv2_2023_train_059985

Lateral radiograph four months postoperatively. Note the union of the olecranon fracture and the satisfactory position of the radiocapitellar joint.

ROCOv2_2023_train_059986

Anteroposterior radiograph four months postoperatively. Note the union of the olecranon fracture and the satisfactory position of the radiocapitellar joint.

ROCOv2_2023_train_059987

Example picture of HR-US image.Measurements were performed at the outer margin of the implant (yellow line). Scale was adjusted automatically by the software.

ROCOv2_2023_train_059988

A region of interest (ROI, yellow marked area) is placed below the capsular artifact, which is visualized in orange color. The measured attenuation coefficient is 0.58 dB/cm/MHz, indicating the absence of steatosis.

ROCOv2_2023_train_059989

Initial panoramic radiograph

ROCOv2_2023_train_059990

Coronal, post-contrast T1 image of a posterior human butterfly GBM.

ROCOv2_2023_train_059991

Cardiac MRI showing 2 to 3-mm focus of potential mid myocardial enhancement in the interventricular septum towards the base.

ROCOv2_2023_train_059992

MRI evidence of iron deposition within the imaged liver with a calculated liver iron concentration of 3.25 mg/gram.

ROCOv2_2023_train_059993

Ultrasound image of the pocket of fluid formation after the injection of a methylene blue-lidocaine solution using the t-TTP approach, at the level of the fifth interchondral space. The pocket of fluid is delimited by the dotted line. CP, costal pleura; D, dorsal; IE, external intercostal muscle; II, internal intercostal muscle; IIm, internal intercostal membrane; L, lateral; M, medial; Nt, needle tip; Pk, pocket of fluid, PP, pectoralis profunda muscle; RA, rectus abdominis muscle; S, sternum; TT, transversus thoracis muscle; V, ventral.

ROCOv2_2023_train_059994

High-resolution computed tomography scan shows emphysematous change (double arrow) and bronchiectasis (arrow) in left lower lobe of lung.

ROCOv2_2023_train_059995

Contrast enhanced computed tomography demonstrates an anomalous artery (arrow) originating from the upper abdominal aorta and extending into the sequestered lung (double arrow).

ROCOv2_2023_train_059996

Measurement of vein diameter using ultrasonography.

ROCOv2_2023_train_059997

Digital subtraction angiography image showing the points where measurements were taken.The NASCET method uses the distal segment as a comparator to the stenotic region. The WASID method divides the stenotic segment measurement by the proximal normal segment.

ROCOv2_2023_train_059998

X-ray chest with bilateral intercostal drains; the arrows depicting areas of subcutaneous emphysema

ROCOv2_2023_train_059999

CT thorax w/contrast; coronal view; There is an eccentric circumferential thickening of the distal esophageal wall, eccentric to the right measuring up to 1.8 cm in thickness for a length of approximately 4.6 cm.

ROCOv2_2023_train_060000

Chest CT scan with contrast revealed large amount of pericardial effusion and anterior mediastinal mass

ROCOv2_2023_train_060001

Two large thromboses in right atrium in four chamber view of echocardiography

ROCOv2_2023_train_060002

The T2-weighted magnetic resonance imaging of the cervical spine in the sagittal section shows medullary compression (asterisk) and disruption of ligaments (arrow).

ROCOv2_2023_train_060003

Axial contrast-enhanced computed tomography. There is a pericardial heterogeneous cystic mass (asterisk) containing peripherally located foci of calcifications (arrow).

ROCOv2_2023_train_060004

Abnormal communication of superior mesenteric vein and rt testicular vein.

ROCOv2_2023_train_060005

A CBCT image in the sagittal plane shows the method of measurement for vertical and slanted nasopalatine canals.