radiation-induced lung injuryacute(1-3months)
impaired gas exchange due to exudative alveolitis → ☆hyaline membrane formation, pneumocyte sloughing(slúː)
chronic(6-12months)
radiation fibrosis(dense fibrous bands) results in decreased lung volume and dilated bronchi and bronchioles(ie traction bronchiectasis)
(predisposition to chronic infections) respiratoryradiologyUWorld Jul 5, 2020, 5:34 AM HirotoShishido
late stage radiation dermatitis(months to years, acute<90 days after radiotherapy)
fibrosis= ☆homogenization of dermal collagen, vascular damage→ chronic hypoxia and ulceration, ☆abnormal dilatied microvasculature(ie telangiectasias) dermatologyradiologyUWorld May 30, 2020, 2:32 AM HirotoShishido
CXR
denser structures inside the chest wall
denser structures outside the chest wallinside→ trachea, heart, aorta, diaphragm, PA(upper than PV) → mass, liquid
outside→ scapula, clavicle, vertebra, ribs → bone radiology Jan 28, 2020, 3:16 AM HirotoShishido
fractional flow reserveFFR
is a guide wire-based procedure that can accurately measure blood pressure and flow through a specific part of the coronary artery. FFR is done through a standard diagnostic catheter at the time of a coronary angiogram.
(percentage of blockage is not very accurate) cardiovascularradiology Oct 4, 2019, 7:36 AM HirotoShishido
two types of catheter ablationradiofrequency ablation
(heat the tissue)
ground glass opacitiesnon-specific sign with a wide etiology
including
opportunistic infection(e.g. pneumocystis,CMV,RSV)
chronic interstitial disease(interstitial pneumonia)
acute alveolar disease(ARDS) respiratoryradiology Sep 29, 2019, 6:08 AM HirotoShishido
70 yo woman, skinny, no past operation
the common cause of obstruction easily missed outobturator hernia radiologygastrointestinal Sep 26, 2019, 3:51 AM HirotoShishido