CT Pulmonary Angiogram with Reduced Radiation Exposure at Low Tube Kilovoltage

Thoracic inlet syndrome--a diagnosis made on CT pulmonary angiogram.

1 of 2 DESCRIPTION A 42-year-old woman with a history of hypothyroidism and Addison’s disease presented with acute onset of breathlessness, chest pain and dry cough. The chest pain was pleuritic in nature and radiated into the back. On physical examination, she was hypotensive with blood pressure of 87/54 mm Hg. Her pulse rate was 95/min with normal jugular venous pressure. Respiratory system e...

Radiation Exposure to the Patient During Diagnostic Coronary Angiogram at Dhulikhel Hospital.

BACKGROUND Radiation is a necessary evil in Coronary Angiogram. The Interventional Cardiology procedure provides huge benefit to the patient but at the cost of radiation. There is evidence of cumulative effect of radiation. Therefore it is essential to keep the radiation dose as minimum as possible. OBJECTIVE The aim of this study is to find out radiation exposed to the patient undergoing dia...

Breath-hold at ease: a method of improving the diagnostic quality of CT pulmonary angiogram

Effect of Low Tube Voltage on Image Quality, Radiation Dose, and Low-Contrast Detectability at Abdominal Multidetector CT: Phantom Study

PURPOSE To investigate the effect of low tube voltage (80 kV) on image quality, radiation dose, and low-contrast detectability (LCD) at abdominal computed tomography (CT). MATERIALS AND METHODS A phantom containing low-contrast objects was scanned with a CT scanner at 80 and 120 kV, with tube current-time product settings at 150-650 mAs. The differences between image noise, contrast-to-noise ...

Low kilovoltage CT of the neck with 70 kVp: comparison with a standard protocol.

BACKGROUND AND PURPOSE CT protocols should aim for radiation doses being as low as reasonably achievable. The purpose of our study was to assess the image quality and radiation dose of neck CT at a tube potential of 70 kVp. MATERIALS AND METHODS Twenty patients (7 female, mean age 51.4 years, age range 19-81 years) underwent contrast-enhanced 64-section CT of the neck at 70 kVp (ATCM, effecti...