A 22-year-old female patient, suffering from tarsal coalition, was scheduled for surgery. CT was performed to evaluate the size, location and extent of the coalition for preoperative workup. An ultra-high resolution scan mode was performed on a photon-counting CT, NAEOTOM Alpha®.
A 64-year-old male patient, complaining of atypical chest discomfort during exercise and palpitations at rest, presented himself to the hospital. A coronary CT angiography was performed on a Dual Source photon-counting CT, NAEOTOM Alpha®, using a Quantum HD cardiac mode to rule out exercise-induced coronary insufficiency.
A 61-year-old male patient, suffering from a renal cell carcinoma (RCC), underwent a CT examination for staging. A small lung nodule was detected, suspicious of a metastasis. The patient was admitted for a biopsy of the lesion under CT guidance.
A 58-year-old female patient with a 10-year history of migraine, tinnitus and orthostatic headache, was diagnosed of spontaneous intracranial hypotension. CT myelography was performed on a photon-counting CT, NAEOTOM Alpha®, using a UHR scan mode to identify and localize the suspected cerebrospinal fluid-venous fistula prior to a definitive treatment.
A 9-year-old boy, suffering from frequent urination, weak stream and enuresis, was presented to the hospital for a check-up. Ultrasonography and cystoradiography revealed hydronephrosis and hydroureter on the right side, accompanied by multiple stones in the distal ureter. An abdominal contrast CT examination was requested for further evaluation.
A 28-year-old female patient, suffering from a sudden onset of heart palpitation accompanied by atypical chest pain, was admitted to the emergency room. The patient reported no previous episode and her medical history was unremarkable. A chest CT angiography (CTA) was requested to rule out associated anomalies.
Inside an incidental solid renal mass
An 89-year-old male patient, complaining of unspecific abdominal pain and hematuria, came to the hospital for a checkup. Physical examination and laboratory tests suggested a prostatic hyperplasia as the cause of hematuria. An abdominal contrast CT scan was performed on a dual source photon-counting CT, NAEOTOM Alpha®, to rule out any other potential cause.
Anomalous pulmonary venous connection – total or partial?
A 22-month-old girl with a cardiac murmur was diagnosed with congenital heart disease and admitted for surgical repair. A pulmonary CTA was requested for preoperative evaluation.
FOOSH injury with screw fixation of the scaphoid
A 20-year-old male patient with a FOOSH injury underwent a screw fixation of the scaphoid and later, a revision surgery due to non-union of the fracture. A follow-up CT showed unclear bone structure around the screw with the presence of metal artifacts. Further evaluation was performed using a UHR scan mode on a photon-counting CT (NAEOTOM Alpha®).
A 13-year-old female patient, with left elbow complaints for the past 18 months, had a radiograph of the elbow which showed a suspicious osteochondritis dissecans of the capitellum. For further evaluation, an ultra-high resolution scan mode on a photon-counting CT scanner (NAEOTOM Alpha®) was requested.
Diagnostic accuracy of ultra-high resolution coronary CT angiography using photon-counting CT
The NAEOTOM Alpha®, a newly developed dual-source CT scanner with photon-counting detectors (QuantaMax®), has the potential to address some of the challenges of cCTA. It provides energy-resolved CT data without electronic noise at improved spatial resolution.
Scaphoid fracture only seen in CT
A 14-year-old girl presented herself to the emergency department due to a fall onto her outstretched right hand. Radiographs performed revealed only equivocal result. A CT scan was requested for further evaluation, using an ultra-high resolution mode on a photon-counting CT scanner (NAEOTOM Alpha).