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WordNet
- place signs, as along a road; "sign an intersection"; "This road has been signed"
- (medicine) any objective evidence of the presence of a disorder or disease; "there were no signs of asphyxiation"
- a perceptible indication of something not immediately apparent (as a visible clue that something has happened); "he showed signs of strain"; "they welcomed the signs of spring" (同)mark
- a character indicating a relation between quantities; "dont forget the minus sign"
- a fundamental linguistic unit linking a signifier to that which is signified; "The bond between the signifier and the signified is arbitrary"--de Saussure
- a gesture that is part of a sign language
- a public display of a message; "he posted signs in all the shop windows"
- engage by written agreement; "They signed two new pitchers for the next season" (同)contract, sign on, sign_up
- approve and express assent, responsibility, or obligation; "All parties ratified the peace treaty"; "Have you signed your contract yet?" (同)ratify
- communicate silently and non-verbally by signals or signs; "He signed his disapproval with a dismissive hand gesture"; "The diner signaled the waiters to bring the menu" (同)signal, signalize, signalise
- mark with ones signature; write ones name (on); "She signed the letter and sent it off"; "Please sign here" (同)subscribe
- be engaged by a written agreement; "He signed to play the casino on Dec. 18"; "The soprano signed to sing the new opera"
- communicate in sign language; "I dont know how to sign, so I could not communicate with my deaf cousin"
- having a handwritten signature; "a signed letter"
PrepTutorEJDIC
- (ある事実・状態・感情などの)『表れ』,印,気配,徴侯(indication);(…の)こん跡,計跡《+『of』+『名』》・『身ぶり』,手まね,合図 / 『標識』,看板 / (数学・音楽などの)記号 / (…の)『象徴』,シンボル(symbol)《+『of』+『名』》・《文》(…の)『前兆』,きざし《+『of』+『名』》・宮(きゅう)(黄道12区分の一つ) ・〈手紙・書類・作品など〉‘に'『署名する』・(…に)〈名前など〉‘を'書く《+『名』+『on』(『to』)+『名』》 / …‘を'雇う契約に署名する・…‘を'合図する,知らせる;…に合図する・署名する・契約書に署名して雇われる
- =ti
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2016/03/16 01:27:46」(JST)
[Wiki en表示]
In chest radiography, the Westermark sign is a sign that represents a focus of oligemia (hypovolemia) (leading to collapse of vessel) seen distal to a pulmonary embolism (PE).[1] While the chest x-ray is normal in the majority of PE cases,[2] the Westermark sign is seen in 2% of patients.[3]
The sign results from a combination of:
- the dilation of the pulmonary arteries proximal to the embolus and
- the collapse of the distal vasculature creating the appearance of a sharp cut off on chest radiography.
Sensitivity and specificity
The Westermark sign, like Hampton's hump (a wedge shaped, pleural based consolidation associated with pulmonary infarction), has a low sensitivity (11%) and high specificity (92%) for the diagnosis of pulmonary embolism.[4]
References
- ^ Ray J (2003). "Westermark sign and suspected pulmonary embolism.". Can J Cardiol 19 (3): 317; author reply 317. PMID 12680403.
- ^ Introduction to Chest Radiography. http://www.med-ed.virginia.edu/courses/rad/cxr/index.html
- ^ Worsley D, Alavi A, Aronchick J, Chen J, Greenspan R, Ravin C (1993). "Chest radiographic findings in patients with acute pulmonary embolism: observations from the PIOPED Study.". Radiology 189 (1): 133–6. doi:10.1148/radiology.189.1.8372182. PMID 8372182.
- ^ Gurney J. CT: Diagnosis of Pulmonary Embolism. chestx-ray.com. Available at: http://www.chestx-ray.com/Lectures/PulmEmbLecture/PulmEmbolus.pdf. Accessed on: November 13, 2006.
Symptoms and signs relating to the respiratory system (R04–R07, 786)
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Medical examination and history taking
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Auscultation |
- Stethoscope
- Respiratory sounds
- Stridor
- Wheeze
- Crackles
- Rhonchi
- Hamman's sign
- Pleural friction rub
- Fremitus
- Bronchophony
- Elicited findings
- Percussion
- Pectoriloquy
- Whispered pectoriloquy
- Egophony
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Breathing |
Rate
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- Apnea
- Dyspnea
- Hyperventilation
- Hypoventilation
- Hyperpnea
- Tachypnea
- Hypopnea
- Bradypnea
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Pattern
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- Biot's respiration
- Cheyne–Stokes respiration
- Kussmaul breathing
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Other
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- Respiratory distress
- Respiratory arrest
- Orthopnea/Platypnea
- Trepopnea
- Aerophagia
- Asphyxia
- Breath holding
- Mouth breathing
- Snoring
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Other |
- Chest pain in children
- Chest pain
- Precordial catch syndrome
- Pleurisy
- Clubbing
- Schamroth's window test
- Hippocratic fingers
- Cyanosis
- Cough
- Sputum
- Hemoptysis
- Epistaxis
- Silhouette sign
- Post-nasal drip
- Hiccup
- COPD
- asthma
- Curschmann's spirals
- Charcot–Leyden crystals
- chronic bronchitis
- sarcoidosis
- pulmonary embolism
- Hampton hump
- Westermark sign
- pulmonary edema
- Hamman's sign
- Golden S sign
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UpToDate Contents
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English Journal
- Images in clinical medicine. Westermark sign in pulmonary embolism.
- Krishnan AS, Barrett T.SourceAddenbrooke's Hospital, Cambridge, United Kingdom.
- The New England journal of medicine.N Engl J Med.2012 Mar 15;366(11):e16.
- PMID 22417276
- Algın O, Gökalp G, Topal U.SourceDepartment of Radiology, Uludağ University School of Medicine, Bursa, Turkey. droktayalgin@gmail.com
- Diagnostic and interventional radiology (Ankara, Turkey).Diagn Interv Radiol.2011 Mar;17(1):18-29. Epub 2010 Jul 28.
- A radiological sign can sometimes resemble a particular object or pattern and is often highly suggestive of a group of similar pathologies. Awareness of such similarities can shorten the differential diagnosis list. Many such signs have been described for X-ray and computed tomography (CT) images. I
- PMID 20669122
Related Links
- Westermark sign ② 肺シンチグラフィ 肺血流シンチグラフィでは、欠損像を呈する。 肺換気シンチグラフィでは、正常所見を呈する。 肺血流シンチグラフィ 肺換気シンチグラフィ ③ 血液検査 フィブリン分解産物(FDP)増加。 肺 ...
- Introduction Westermark sign refers to dilation of the pulmonary artery proximal to an embolism with collapse of distal vessels (oligemia, reduced blood volume),... ... The supine portable chest image demonstrates ET tube and NGT. ...
- PE, 肺門部扁平上皮癌等において,肺動脈への侵襲・塞栓を認める場合,肺動脈陰影が突如消え,またその肺動脈の潅流領域に限局性の透過性亢進を認めるもの.
Related Pictures
![wikiradiography com page westermark sign](https://1mg.info/0/2/9/2687.jpg)
![Westermark's Sign - focal or regional](https://1mg.info/0/2/9/2688.jpg)
![Westermark's Sign:](https://1mg.info/0/2/9/2689.jpg)
![Westermark's Sign:](https://1mg.info/0/2/9/2690.jpg)
![Westermark's Sign . Frontal radiograph of](https://1mg.info/0/2/9/2692.jpg)
★リンクテーブル★
[★]
- 英
- Westermark sign, Westermark's sign
- 関
- 肺血栓塞栓症
概念
- 肺血栓塞栓症・肺梗塞において、支配領域の血管陰影が消失し、肺野の限局性透亮像としてとらえられる単純胸部X線写真上の徴候
参考
- http://en.wikipedia.org/wiki/Westermark_sign
- http://www.nurs.or.jp/~academy/igaku/s4/s4561.htm
- 解説が詳しい。写真有り。ナックルサインも
- http://icuroomnetapril2010archive.blogspot.com/2010/04/thursday-april-1-2010-cxr-diagnosis-in.html
[★]
- 関
- indication、manifestation、signature、stigma、stigmata、symptom、symptomatic