Coronary stenosis assessment prior to a transcatheter aortic valve replacement –revascularization?
A 62-year-old male patient with severe symptomatic low-flow, low-gradient aortic stenosis was scheduled for transcatheter aortic valve replacement. A coronary CT angiography was performed prior to the procedure, using an ultra-high resolution scan mode due to the patient’s high coronary calcium load.
Neuroradiologists are won over by photon-counting CT
The improved resolution offered by photon-counting technology is a game changer for neurologists at Erasmus Medical Center Rotterdam, says lead researcher Professor Aad van der Lugt.
A small pulmonary nodule in an obese patient
A 60-year-old female patient with severe obesity (300 kg body weight) was admitted to the hospital due to sepsis and acute renal failure. A lung X-ray was performed and revealed a small lesion at the level of the right pulmonary hilus with an unclear nature. A contrast enhanced CT was requested for further investigation.
A massive paraspinal dermal hemangiosarcoma – palliative or surgical therapy?
A 16-year-old female dog, suffering from a massive paraspinal mass on her left lower back for the past 6 months, was referred for palliative treatment as the mass was considered nonresectable due to its size and location. A contrast CT was performed to assess the extent of the mass, as well as its relationship to the surrounding tissues and the lumbar spine.
Small bowel infarction secondary to an acquired diaphragmatic hernia
A 75-year-old male patient presented to the emergency department with an acute onset of epigastric pain radiating to the left upper quadrant, obstipation and numerous episodes of vomiting. A CT examination of the abdomen and pelvis with contrast was immediately performed for evaluation.
Chronic thromboembolic pulmonary hypertension
A 68-year-old female patient, who had undergone a balloon pulmonary angioplasty (BPA) four months ago, returned to the hospital for her second scheduled treatment session. A dual energy chest CT was requested to evaluate the lung perfused blood volume (LungPBV) and the pulmonary arteries prior to treatment.
Cystic echinococcosis in a child
A 13-year-old boy, suffering from epigastric pain, nausea and vomiting, with aggravation after meals over the past three days, came to the hospital. An ultrasound examination revealed a large mass in the right hepatic lobe. A CT examination was performed for differential diagnosis.
Unrepaired persistent truncus arteriosus in an adult
A 27-year-old female patient came to the hospital complaining of a mild edema developing in both of her legs, for no obvious reason, over the past two weeks. A previous diagnosis of “congenital heart disease” in her childhood was reported, however no details could be provided. A chest CT with contrast was requested for further evaluation.
Complex coronary artery fistulas and aneurysm in an asymptomatic patient with Marfan syndrome
A 53-year-old male patient visited a cardiologist after receiving a positive test for Marfan’s disease. He was asymptomatic, had an unremarkable medical history and had been doing a daily 45-minute walk as a training routine. He was tested as a search for the carrier gene after his daughter had a positive genetic test.
Hemoptysis secondary to systemic vascular hypertrophy and bronchial artery malformation
A 41-year-old female patient, suffering from intermittent hemoptysis over the past 5 days, was admitted to the hospital. She had had a history of pulmonary tuberculosis, which had been cured 3 years ago. At admission, she reported neither coughing, fever, chest pain nor syncope. A chest CT angiography was requested to assess the cause for her hemoptysis.
Small-sized renal calculi – uric acid or non-uric acid?
A 40-year-old male patient, suffering from intense right flank pain, came to the emergency department. He reported neither hematuria nor any other symptoms. A serum creatinine test revealed a normal level of 0.79 mg/dL. His medical history was unremarkable. Urolithiasis was suspected and a TwinBeam Dual Energy CT was performed for further assessment.
Severe aortic coarctation in an adult
A 56-year-old female patient, with a history of refractory hypertension, suffered from an acute subarachnoid hemorrhage and was admitted to the emergency department.
Chronic iliofemoral deep vein thrombosis
A 70-year-old female patient, suffering from a deep vein thrombosis of the left lower limb for the past seven years, came to the hospital complaining of newly noticed varicose veins in her lower abdominal wall and perineum within the past three months.
Pediatric coronary-to-pulmonary artery fistula
A 3-year-old female patient, complaining of dyspnea upon exertion as well as intermittent chest pain, was presented to the hospital. An echocardiography examination suspected a coronary-cavitary fistula, without describing the origin and the course of the fistula. A cardiac CT angiography (CTA) was requested for further assessment prior to treatment.