Changes over Time in Intracranial Air in Patients with Cerebral Air Embolism: Radiological Study in Two Cases

<div>A 70-year-old woman (case 1). (a, b) Brain CT performed immediately after her arrival at our hospital (60 min after the estimated CAE onset) shows air inflow in cortical veins in the bilateral frontal areas and the right parietal area reflecting buoyancy of the air (arrows). (c) <svg height="10.3481pt" id="M2" style="vertical-align:-0.1150999pt" version="1.1" viewbox="-0.0498162 -10.233 38.1612 10.3481" width="38.1612pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M601 496C596 555 591 627 591 675H567C551 656 544 650 516 650H120C91 650 79 651 64 675H41C38 619 34 555 29 492H63C75 537 83 566 96 582C110 604 128 612 207 612H272V126C272 46 264 38 170 33V0H464V33C368 38 359 48 359 126V612H430C502 612 520 605 535 582C547 566 556 541 567 492L601 496Z" id="g58-82"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="628" vert-adv-y="628"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,8.164,0)"><path d="M414 144C384 79 371 75 317 75H135L276 221C367 316 408 376 408 465C408 570 327 635 237 635C179 635 131 609 100 575L42 494L67 471C94 510 138 565 205 565C277 565 321 517 321 435C321 348 258 270 195 195C146 137 88 81 33 26V0H411C423 44 433 88 446 135L414 144Z" id="g50-51"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="487" vert-adv-y="487"></glyph.data></g><g transform="matrix(.0091,0,0,-0.0091,14.495,-5.872)"><path d="M486 158C486 177 478 202 466 220C413 228 386 236 336 262C386 288 413 297 466 304C478 323 486 347 485 366C470 376 444 381 422 380C389 338 368 319 321 288C323 345 329 372 349 422C339 442 322 461 305 470C289 461 271 442 262 422C281 372 287 345 290 288C243 319 222 338 189 380C167 381 142 376 125 366C125 347 133 322 145 304C198 296 225 288 275 262C225 236 198 227 145 220C133 201 125 177 126 158C141 148 167 143 189 144C222 186 243 205 290 236C288 179 282 152 262 102C272 82 289 63 306 54C322 63 340 82 350 102C330 152 324 179 321 236C368 205 390 186 422 144C444 143 470 148 486 158Z" id="g50-43"></path><glyph.data ascent="3443" descent="-2856" horiz-adv-x="611" vert-adv-y="611"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,20.574,0)"><path d="M969 650H746V617C823 609 825 598 814 540C798 470 743 278 700 144H698C638 319 581 476 525 641H491C440 478 384 317 329 145H327C283 286 245 418 205 553C192 601 192 609 267 617V650H20V617C80 609 98 602 122 522C177 343 233 172 285 -9H321C372 152 428 309 485 485H487C542 330 604 151 660 -9H696C779 269 841 460 862 521C891 599 900 609 969 617V650Z" id="g58-85"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="988" vert-adv-y="988"></glyph.data></g><g transform="matrix(.013,0,0,-0.013,33.418,0)"><path d="M308 0V33C225 38 217 44 217 128V521C217 605 225 612 308 617V650H39V617C122 612 130 605 130 521V128C130 44 122 38 39 33V0H308Z" id="g58-71"></path><glyph.data ascent="1007" descent="-369" horiz-adv-x="348" vert-adv-y="348"></glyph.data></g></svg> obtained 30 minutes after the CT scan at the same level as in (b). There was less air than in (b) (arrows). (d) DWI obtained 30 min after the CT scan showing cortical areas with restricted diffusion near the air (arrows).</div>

Case Reports in Neurological Medicine

fig1

Figure 1

Figure 1: Changes over Time in Intracranial Air in Patients with Cerebral Air Embolism: Radiological Study in Two Cases 