29:
178:
and that caused by false positives. Specifically, the combination of greater than 43 Hounsfield units and an MCA density ratio of greater than 1.2 was diagnostic of a dense MCA sign associated with acute ischemic stroke.
277:
Zorzon M, Masè G, Pozzi-Mucelli F, et al. (1993). "Increased density in the middle cerebral artery by nonenhanced computed tomography. Prognostic value in acute cerebral infarction".
84:
in patients with strokes, it was the earliest sign of ischemic stroke in a significant minority of cases. Its appearance portends a poor prognosis for the patient.
506:
242:
Schuknecht B, Ratzka M, Hofmann E (1990). "The "dense artery sign"--major cerebral artery thromboembolism demonstrated by computed tomography".
36:
CT scan without intravenous contrast showing hyperdense aspect of the right middle cerebral artery, indicating thrombus within the vessel
437:
Lee TC, Bartlett ES, Fox AJ, Symons SP. The hypodense artery sign. American
Journal of Neuroradiology. 2005 September; 26(8):2027-2029.
499:
403:
Bodensteiner JB, Reitter BF, Sheth RD (September 1998). "Basilar artery occlusion and the dense artery sign in the newborn".
451:
779:
693:
492:
92:
728:
637:
609:
317:"Dense middle cerebral artery sign: an indicator of poor outcome in middle cerebral artery area infarction"
202:"Acute middle cerebral artery thrombosis demonstrated by cranial computed tomography: the "dense MCA" sign"
680:
589:
365:
155:
88:
41:
366:"Thrombosis of the posterior cerebral artery (PCA) visualized on computed tomography: the dense PCA sign"
201:
584:
135:
670:
69:
713:
708:
559:
471:
420:
385:
346:
294:
259:
221:
733:
718:
614:
564:
531:
463:
412:
377:
336:
328:
286:
251:
213:
96:
647:
619:
604:
594:
515:
175:
171:
143:
81:
77:
73:
166:
Identification of the dense artery sign is often based on subjective interpretation and
698:
523:
341:
316:
167:
100:
170:
may occur. One study aiming to define criteria for the sign determined that measuring
773:
738:
703:
655:
569:
147:
723:
665:
660:
599:
579:
574:
65:
28:
688:
551:
381:
217:
416:
146:
occlusion of an artery. Specifically, the hyperdensity is thought to be due to
629:
174:
on the CT scan could differentiate between the dense MCA sign associated with
151:
748:
541:
332:
475:
389:
424:
350:
298:
263:
225:
139:
53:
255:
467:
290:
484:
452:"What constitutes a true hyperdense middle cerebral artery sign?"
488:
747:
679:
646:
628:
550:
522:
40:
21:
138:, the sign has been demonstrated to correspond to
445:
443:
500:
310:
308:
237:
235:
195:
193:
191:
8:
507:
493:
485:
27:
18:
340:
200:Bakshi R, Mazziotta JC (December 1998).
187:
315:Launes J, Ketonen L (November 1987).
7:
450:Koo CK, Teasdale E, Muir KW (2000).
364:Bettle N, Lyden PD (December 2004).
666:Fat pad sign/Sail sign of the elbow
87:The sign has been observed in the
14:
759:Hyperdense middle cerebral artery
321:J. Neurol. Neurosurg. Psychiatry
126:can occur due to fat embolism.
1:
103:; these have been called the
382:10.1001/archneur.61.12.1960
218:10.1001/archneur.55.12.1577
113:dense vertebral artery sign
796:
417:10.1177/000992289803700905
117:dense basilar artery sign
93:posterior cerebral artery
35:
26:
729:Pneumatosis intestinalis
80:. In earlier studies of
68:of an artery as seen on
610:Traction bronchiectasis
333:10.1136/jnnp.50.11.1550
590:Sail sign of the chest
156:atherosclerotic plaque
89:middle cerebral artery
62:hyperdense artery sign
42:Differential diagnosis
585:Peribronchial cuffing
124:hypodense artery sign
72:(CT) scans, and is a
638:Canga's bead symptom
405:Clin Pediatr (Phila)
136:cerebral angiography
671:Osteopathia striata
154:associated with an
70:computer tomography
256:10.1007/BF00588557
767:
766:
714:Hot quadrate sign
560:Air crescent sign
537:Dense artery sign
468:10.1159/000016101
291:10.1159/000116949
58:dense artery sign
50:
49:
22:Dense artery sign
16:Medical condition
787:
780:Radiologic signs
681:Gastrointestinal
615:Tree-in-bud sign
565:Deep sulcus sign
532:Aortic unfolding
516:Radiologic signs
509:
502:
495:
486:
480:
479:
456:Cerebrovasc. Dis
447:
438:
435:
429:
428:
400:
394:
393:
361:
355:
354:
344:
312:
303:
302:
274:
268:
267:
239:
230:
229:
197:
172:Hounsfield units
119:, respectively.
97:vertebral artery
64:is an increased
31:
19:
795:
794:
790:
789:
788:
786:
785:
784:
770:
769:
768:
763:
743:
675:
648:Musculoskeletal
642:
624:
620:Westermark sign
605:Thumbprint sign
595:Silhouette sign
546:
518:
513:
483:
449:
448:
441:
436:
432:
402:
401:
397:
363:
362:
358:
314:
313:
306:
276:
275:
271:
241:
240:
233:
199:
198:
189:
185:
176:ischemic stroke
168:false positives
164:
144:atherosclerotic
132:
82:medical imaging
78:ischemic stroke
74:radiologic sign
46:ischemic stroke
17:
12:
11:
5:
793:
791:
783:
782:
772:
771:
765:
764:
762:
761:
756:
753:
751:
745:
744:
742:
741:
736:
731:
726:
721:
716:
711:
709:Hampton's line
706:
701:
699:Endoexoenteric
696:
691:
685:
683:
677:
676:
674:
673:
668:
663:
658:
652:
650:
644:
643:
641:
640:
634:
632:
626:
625:
623:
622:
617:
612:
607:
602:
597:
592:
587:
582:
577:
572:
567:
562:
556:
554:
548:
547:
545:
544:
539:
534:
528:
526:
524:Cardiovascular
520:
519:
514:
512:
511:
504:
497:
489:
482:
481:
439:
430:
395:
376:(12): 1960–1.
356:
327:(11): 1550–2.
304:
269:
244:Neuroradiology
231:
186:
184:
181:
163:
162:Identification
160:
131:
128:
109:dense PCA sign
105:dense MCA sign
101:basilar artery
48:
47:
44:
38:
37:
33:
32:
24:
23:
15:
13:
10:
9:
6:
4:
3:
2:
792:
781:
778:
777:
775:
760:
757:
755:
754:
752:
750:
746:
740:
739:Sentinel loop
737:
735:
734:Rigler's sign
732:
730:
727:
725:
722:
720:
719:Mumoli's sign
717:
715:
712:
710:
707:
705:
704:Football sign
702:
700:
697:
695:
694:Double bubble
692:
690:
687:
686:
684:
682:
678:
672:
669:
667:
664:
662:
659:
657:
656:Crescent sign
654:
653:
651:
649:
645:
639:
636:
635:
633:
631:
627:
621:
618:
616:
613:
611:
608:
606:
603:
601:
598:
596:
593:
591:
588:
586:
583:
581:
578:
576:
573:
571:
570:Golden S sign
568:
566:
563:
561:
558:
557:
555:
553:
549:
543:
540:
538:
535:
533:
530:
529:
527:
525:
521:
517:
510:
505:
503:
498:
496:
491:
490:
487:
477:
473:
469:
465:
462:(6): 419–23.
461:
457:
453:
446:
444:
440:
434:
431:
426:
422:
418:
414:
410:
406:
399:
396:
391:
387:
383:
379:
375:
371:
367:
360:
357:
352:
348:
343:
338:
334:
330:
326:
322:
318:
311:
309:
305:
300:
296:
292:
288:
284:
280:
273:
270:
265:
261:
257:
253:
250:(2): 98–103.
249:
245:
238:
236:
232:
227:
223:
219:
215:
211:
207:
203:
196:
194:
192:
188:
182:
180:
177:
173:
169:
161:
159:
157:
153:
149:
148:calcification
145:
141:
137:
129:
127:
125:
120:
118:
114:
110:
106:
102:
98:
94:
90:
85:
83:
79:
75:
71:
67:
63:
59:
55:
45:
43:
39:
34:
30:
25:
20:
758:
749:Neurological
724:Omental cake
661:Fabella sign
600:Steeple sign
580:Kerley lines
575:Hampton hump
536:
459:
455:
433:
411:(9): 551–4.
408:
404:
398:
373:
370:Arch. Neurol
369:
359:
324:
320:
285:(3): 256–9.
282:
278:
272:
247:
243:
212:(12): 1577.
209:
206:Arch. Neurol
205:
165:
133:
123:
121:
116:
112:
108:
104:
86:
66:radiodensity
61:
57:
51:
689:Cupola sign
552:Respiratory
279:Eur. Neurol
630:Urogenital
183:References
152:hemorrhage
122:Rarely, a
542:Halo sign
76:of early
774:Category
476:11070370
390:15596621
134:Through
54:medicine
425:9773238
351:3694213
342:1032575
299:8467850
264:2398948
226:9865804
140:embolic
95:(PCA),
91:(MCA),
474:
423:
388:
349:
339:
297:
262:
224:
115:, and
99:, and
56:, the
130:Cause
472:PMID
421:PMID
386:PMID
347:PMID
295:PMID
260:PMID
222:PMID
464:doi
413:doi
378:doi
337:PMC
329:doi
287:doi
252:doi
214:doi
150:or
142:or
60:or
52:In
776::
470:.
460:10
458:.
454:.
442:^
419:.
409:37
407:.
384:.
374:61
372:.
368:.
345:.
335:.
325:50
323:.
319:.
307:^
293:.
283:33
281:.
258:.
248:32
246:.
234:^
220:.
210:55
208:.
204:.
190:^
158:.
111:,
107:,
508:e
501:t
494:v
478:.
466::
427:.
415::
392:.
380::
353:.
331::
301:.
289::
266:.
254::
228:.
216::
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
