Budd-Chiary syndrome
Budd-Chiari syndrome (BCS) is caused by occlusion of the hepatic veins, leading to hepatic congestion. Common causes include thrombosis, often...
January 11, 2026
ferdaj
2026
Portal biliopathy: an advantage to use low keV monoenergetic CTA
Occlusion of the portal circulation often leads to the development of centripetal collateral circulation, which encompasses the entire spectrum from...
January 11, 2026
Freiberg-Koehler disease: ultra-high resolution skeletal CT
Freiberg-Koehler disease is aseptic necrosis of the head of the second or third metatarsal bone. It is more common in...
January 1, 2026
diabetic microangiopathy: coronary CTA in single source photon-counting CT
Diabetic microangiopathy in the coronary arteries involves damage to the small blood vessels of the heart, causing them to thicken,...
January 1, 2026
aortic intramural hematoma Stanford type B, virtual non-contrast imaging
Intramural hematoma is a pathological condition classified as an acute aortic syndrome, in which a hematoma forms in the tunica...
January 1, 2026
abdominal blunt trauma: dual-phase splenic rupture
splenic rupture Spleen injury occurs in blunt abdominal trauma, when the force is concentrated in the upper left abdominal quadrant,...
January 1, 2026
2025
brain injury: spectral imaging improves bleeding detection
Bleeding is characterized by different absorption characteristics than healthy brain tissue (both gray and white matter) and cerebrospinal fluid. Due...
December 30, 2025
dental CT with ultrahigh resolution
the ultrahigh resolution improve the imaging of the dentition, the dental CT is the next application of ultra-high resolution CT. The volume rendered images display the position of the dental retention and the position of the tooth in relation to the others. The multi-planar reconstructions show the distinct position of the teeth which are growing in the wrong way including in palatial dystopias.
December 14, 2025
renal artery stenosis with renal hypoperfusion
case report significant narrowing of the right renal artery decreases the perfusion of the right kidney in the patient with...
December 14, 2025
carcinoma of pancreatic head surgery planning in high-aged patient
the assessment of the extent of the pancreatic carcinoma is the crucial in the assessment of the involvement of the...
December 14, 2025
furosemide test: low dose strategy in photon-counting CT urography
CT urography provides functional and morphological imaging of the renal excretory system, as well as an assessment of renal excretory...
December 6, 2025
lung carcinoma bleeding: virtual non-contrast imaging
Virtual non-contrast imaging, which utilizes the spectral characteristics of photon-counting CT data, allows for the visualization of areas of high...
December 6, 2025
malum coxae senile – spectral imaging
Malum coxae senile develops as aseptic necrosis of the femoral head epiphysis in situations where the bone structure collapses due...
December 5, 2025
hemothorax: spectral analysis
Case report a male patient with the large plural effusion admitted to the hospital. Chest Ct shows higher density of...
December 1, 2025
biliary ileus: spectral imaging of the stone wedged inside ileum
Biliary ileus (Gallstone ileus) is a rare cause of mechanical bowel obstruction caused by a gallstone that enters the gastrointestinal tract—usually...
December 1, 2025
takotsubo cardiomyopathy
The exceptional temporal resolution of the dual-source photon-counting CT Naeotom Alpha.Peak allows for highly accurate imaging of the coronary circulation...
November 29, 2025
injury of talus: ultra-high-resolution
Talus injuries in ankle injuries are relatively rare and require considerable energy. The fractures themselves include fractures of the trochlea,...
November 23, 2025
injury of the urinary bladder in polytrauma: a role of the spectral imaging
Serious injuries to the pelvic skeleton can result in bladder injury. Injuries can be caused by sharp bone fragments, but...
November 23, 2025
iliofemoral and inferior vena cava thrombosis with pulmonary embolism at one scan with split bolus technique
72yo female with the palliative treatment of the large bowel carcinoma with liver metastases. Accidental finding of the inferior vena...
October 28, 2025
Amiodarone lung pneumonitis: spectral analysis
Pulmonary toxicity caused by amiodarone includes various levels of lung involvement, ranging from mild lipoid pneumonitis, through interstitial pneumonitis, to...
October 28, 2025
polytrauma – mandibular and pelvic “ring” fractures
ring fractures – mandible and pelvis after motorcycle accident Naeotom Alpha Peak, University Hospital Pilsen
October 23, 2025
acute subdural hematoma, subarachnoid bleeding and brain contusion – improved blood visualization with 190 keV images
Case report Acute brain trauma after accident, fall from bicycle, left-sided acute subdural hematoma, subarachnoid bleeding in Sylvia fossa and...
October 23, 2025
70 kV pediatric coronary CTA: Kawasaki-like disease related to COVID-19:
70 kV protocol improves the efficiency of the X-ray photo-effect related to the iodine attenuation, thus it improves the efficiency...
August 3, 2025
run-off arterial CTA: soft plaque stenosis of popliteal artery
Case report A 75-year-old patient with severe claudication in the left calf. Two hair-like stenoses are seen in the popliteal...
July 28, 2025
dynamic 4DCTA: borderline compensated critical perfusion in stenosed MCA
perfusion maps case report In a patient with transient ischemic attack (TIA), dynamic imaging was performed after intravenous contrast agent...
July 28, 2025
ultra-high resolution CT – lung sarcoidosis stadium II
ultra-high resolution CT of lung tissue allows differentiation of structures that are less than 1 mm in size compared to...
July 28, 2025
left internal carotid occlusion: dense artery sign, perfusion, pure-lumen CTA and dynamic 4DCTA
case report sudden right sided hemiplegia with aphasia in 48 years old patient with atrial fibrillation, complex finding of the...
July 16, 2025
hypersensitive pneumonia: high keV images of the air trapping
the clinical symptomes of the hypersensitive pneumonia contain the expiratory dyspnea, the expiratory dyspnea is caused by the edematous bronchi...
July 16, 2025
esophagitis: low keV images of the mucosal enhancement
the mucosal enhancement in the patients with esofagitis could be effectively enriched using low keV setting, the tiny enhancement and...
July 16, 2025
40 keV images of inferior mesenteric collateralization in aorta with deployed bifurcation stentgraft
using 40 keV image setting improves visualization of the collateralization of the inferior mesenteric artery via anastomosis of Riolan opened...
July 15, 2025
spectral whole aorta CTA: slow-flow iodine enhancement inhomogeneity compensation
the enhancement inhomogeneities present very frequently in patients with the lower compliant vascular system, especially in cases of the abdominal...
July 15, 2025
Pulmonary embolism and pericardial tamponade in lung adenocarcinoma: pulmonary blood volume
lung perfusion is a dynamic process depending on several conditions, the dynamics is involved by the functional performance of the...
July 13, 2025
acute otomastoiditis: temporal bone ultra-high resolution CT
case report The cavity of the middle ear and cellular system of mastoideal process are being filled completely by exudate...
July 8, 2025
renal vein thrombosis in pyogenic pyelonephritis: multiphase renal CT
Case report: a patient with the six day lasting history of slowly developing right flank pain was admitted to the...
June 16, 2025
acute desquamative interstitial pneumonia: ultra-high-resolution CT
desquamative interstitial pneumonia (DIP) is a relatively uncommon form of idiopathic interstitial pneumonia, intraalveolar macrophage infiltration is typical for it...
June 16, 2025
dual phase chest CT angiography: haemodynamics of acute aortic dissection type A
the acute dissection of ascending aorta endangers patient with the multiple possible fatal effects. The one of the most important...
June 15, 2025
photon-counting “standard” resolution skull imaging: 3D-display of the complicated facial trauma
the face skeleton trauma has frequently very complicated three-dimensional pattern, the improved resolution of the general imaging of the brain...
June 15, 2025
spectral imaging of a coronary plaque: contrast optimizing of hard and soft components
coronary CTA, spectral image at 190 keV showing calcifies plaques spectral data acquisition in vascular imaging could facilitate the contrast...
June 15, 2025
cochlear type of otosclerosis: ultra-high-resolution temporal bone imaging
the size of temporal bone structures requests the highest possible spatial resolution to display their pathologies. The subtle structures imaging...
June 15, 2025
ultra-high-resolution dental CT: palatinal reverse retention of incisive
ultra-high resolution imaging using the smallest detector element size of 0.2 mm improves the spatial resolution of the imaging in...
June 11, 2025
renal colic: IMAR and stone chemical analysis
the proper reconstruction of the images plays the essential role in the value of the chemical analysis using spectral properties...
May 18, 2025
bacterial superinfection in influenza A: pediatric 70kV chest CT
chest CT in in pediatric lung infections play important role in complicated cases. The large extent of the inflammatory infiltration...
May 18, 2025
pulmonary dual phase CT angiography: comparison of the pulmonary blood volume in pulmonary and aortic phases
the overall indication to pulmonary CT angiography becomes more and more frequent in any suspected symptom, the approach to the...
May 13, 2025
CCTA: comprehensive assessment in acute myocardial infarction
Photon-countig CT angiography of the coronary arteries enable the method application Case report: CTA chest pain lasted since early morning,...
May 6, 2025
Pilsen in Singapore: clinical imaging with photon-counting CT
a link to PDF presentation of five years experience with photon-counting CT in Pilsen, lecture held by Prof. Jiří Ferda,...
May 3, 2025
acute abdomen: incarceration of direct inguinal hernia
during the imaging of the acute abdomen, there is an important issue: to estimate the viability of the bowel wall....
March 30, 2025
middle cerebral artery occlusion: dense artery sign on 190 keV images
hypertense artery sign is old good sign to he occluded intracranial vessel. The unique composition of the clot is the...
March 29, 2025
spectral brain imaging: epidural hematoma
monoenergetic image with 190 keV shows better the delineation and the inner structure of the hematoma, on the other side,...
March 23, 2025
pulmonary iodine map related to blood flow: hemoptysis caused by influenza type A
color-coded iodine map shows decreased iodine content and related hypoperfusion within the dorsal part of the upper lobe , the...
March 23, 2025
chronic active fibro-cavernous pulmonary tuberculosis: ultra-high resolution imaging
Mycobacterium tuberculosis, like extremely aerobic microorganism, prefers the invasion into the best ventilated parts of the lungs. The chronic state...
February 24, 2025
pancreatic carcinoma local staging
the local staging of pancreatic carcinoma is the crucial in the determination of the technical possibility of the pancreatic resection....
February 9, 2025
iodine spectral detection: hemorrhage from liver metastasis
spectral iodine map when data are contained the spectral information, due to the special iodine physical properties in the absorption...
February 9, 2025
osteochondral Bankart lesion of the glenoid fossa with osseous microfragment interposition into articular space
ultrahigh-resolution CT with the use of the detector element 0.2 mm with one half overlapping reconstruction resulted in voxel size...
February 2, 2025
urinary bladder carcinoma and syndrome of Lerich
case report in patient with massive macroscopic hematuria was performed CT in the arterial, venous and excretory phases. The resolution...
January 30, 2025
pneumonia caused by Mycoplasma pneumoniae
case report in male of the age 43 with the fever and fatigue. The ultrahigh-resolution imaging was performed with the...
January 30, 2025
severe bicuspid aortic valve stenosis: high-pitch ECG triggered flash scan in systolic phase for TAVI planning
hight pitch scanning the high-pitch scanning (FLASH mode) shortens the acquisition time, it is based on the simultaneous data acquisition...
January 27, 2025
200 kg patient with the dyspnea caused by Eisenmenger’s syndrome: dual-phase pulmonary CT angiography
Eisenmenger syndrome Eisenmenger syndrome is developing as a long-term complication of an unrepaired congenital heart defect. Eisenmenger syndrome is life-threatening...
January 27, 2025
virtual non-contrast brain imaging: iodine contrast staining after mechanical thrombectomy
iodine brain tissue staining in the brain ischemia, multiple targeted iodine contrast agent injection are made into the affected territory...
January 27, 2025
urinary stone analysis in acute renal colic
introduction Kabham N. Kidney: Non-neoplastic diseases. in Goldblum JR, McKenney JK, Lampos LW at Myers JL: Rosai and Ackemnan’s Surgical...
January 27, 2025
ultra-high resolution bone imaging: epiphyseolysis of distal tibia
ultra-high resolution of hte peripheral skeleton using 0.2 mm detector element improves the spatial resolution of the imaging in the...
January 24, 2025
low-dose paranasal sinuses imaging with tin filtration: acute sinusitis
paranasal sinuses imaging with CT has the potential to replace completely plain X-rays when the low-dose imaging is used. The...
January 22, 2025
lung perfusion imaging: pulmonary embolism with right ventricle overload
cor pulmonale acutum in pulmonary embolism, it occurs an important impact to the right ventricle hemodynamics, when the large part...
January 21, 2025
virtual non-contrast imaging: pancreatic duct and urinary stones in hyperparathyroidism
the spectral information of the CT images could be exploited in cases of the stones created in the severe hyperparathyroidism....
January 19, 2025
fibromuscular dysplasia of the cervical arteries
Fibromuscular dysplasia (FMD) is a rare blood vessel disorder in which some of the strong, flexible cells of arteries are replaced...
January 19, 2025
unstable cervical spine injury
unstable traffic injury of the motion segment C 5/6 was caused by the hyperflection. The injury affected the intervertebral disc,...
January 19, 2025
cavern of Jores
Cavitation of lung carcinomaCavitation of lung carcinoma occurs on the basis of regressive changes, especially central hypoxia to ischemia. In...
January 19, 2025
angioinvasive aspergillosis
Lung infection in febrile neutropenia Complications after induction treatment of acute myeloid leukemia with skin and bone marrow involvement. In...
January 19, 2025
brain stem hemorrhage
Facial nerve peripheral paresis The examination was performed due to the symptoms of acute central stroke, clinically peripheral paresis of...
January 19, 2025
high-resolution CT angiography: middle cerebral artery aneuryzm
the aneuryzm of the middle cerebral artery in the division of M2 made by trifurcation, preliminary arised temporal branch of...
January 7, 2025
CT enterography: Crohn disease
technique of CT enterography CT enterography data acquisition follows after oral preparation of the small intestine by fractionated sipping of...
January 6, 2025
70 kV abdominal imaging in infant
in infants, there are three main issues in photon-counting CT imaging: to perform the imaging with the sufficient space resolution,...
January 5, 2025
gout: hands and feet uric acid deposits
one of the clasical indications of the dual-energy imaging with energy integrating dual-source systems is being uric acid detection in...
January 2, 2025
neck: parapharyngeal space phlegmona
high-resolution imaging of the head and neck improves the detection of the spatial distribution of the edema, enhancement of the...
January 2, 2025
2024
ultra-high-resolution imaging in interstitial lung diseases
the smallest detector data trace of the photon-counting CT takes 0.2 x 0.2 mm. The reconstruction of 0.2 mm thin...
December 31, 2024
calcium spectral removal in CT angiography
spectral information about atenuation in different energies of X-ray photons is obtained during data acquisition. specific properties of the calcium...
December 30, 2024
coronary stent imaging
photon-counting CT improves the spatial resolution of the acquired data, thus the visibility of the interior of the metalic stent´s...
December 30, 2024
advanced knee trauma imaging with ultra-high resolution
ultra-high resolution imaging the photon-counting detector is made from the small detector elements- respectively parts of the detector which are...
December 29, 2024
photon-counting computed tomography
The history of the clinical imaging with photon-counting CT has begun on June 16th 2020. The first clinical examination ever...
December 29, 2024