Thyroid Remnant Estimation by Diagnostic Dose <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M1" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 25.6385 20.3132" width="25.6385pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><path id="g22-47" d="M415 0V41C335 46 327 62 327 127V635C236 611 161 593 93 583V547L150 544C187 541 192 535 192 483V127C192 59 182 46 102 41V0H415Z"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><path id="g22-49" d="M310 382C345 404 366 417 384 433C404 450 417 474 417 501C417 578 357 635 252 635H251C184 635 135 603 107 572L57 506L86 478C122 527 156 554 205 554C250 554 290 528 290 467S227 367 144 340L151 300C168 304 190 308 208 308C260 308 327 275 327 181C327 89 288 49 238 49C177 49 131 93 109 111C95 122 82 119 70 110C57 100 40 82 40 63C40 48 48 34 65 21C86 4 126 -12 177 -12C240 -12 460 60 460 222C460 298 409 363 310 380V382Z"/></g><g transform="matrix(.012,0,0,-0.012,12.18,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.017,0,0,-0.017,18.996,1.344)"><path id="g13-71" d="M338 0V35C263 42 255 49 255 133V516C255 602 263 608 338 615V650H37V615C112 608 121 602 121 516V133C121 49 112 42 37 35V0H338Z"/></g></svg> Scintigraphy or <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M2" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 67.901 20.3132" width="67.901pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><path id="g22-55" d="M257 635C101 635 25 509 25 419C25 312 99 229 220 229C237 229 254 234 278 246L328 272C302 155 197 53 48 27L55 -15C99 -14 188 2 228 18C369 73 478 199 478 382C478 518 403 635 257 635ZM236 589C313 589 339 482 339 386C339 366 338 342 334 315C320 309 304 303 279 303C206 303 159 375 159 459C159 522 183 589 236 589Z"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><use xlink:href="#g22-55"/></g><g transform="matrix(.012,0,0,-0.012,12.226,-7.578)"><path id="g22-107" d="M839 0V38C786 46 781 50 781 104V295C781 397 732 457 643 457C614 457 585 444 564 429C539 412 516 397 492 378C473 424 433 457 376 457C346 457 319 445 289 426C266 413 246 398 223 382V459C160 442 91 428 43 421V386C91 380 95 369 95 316V107C95 48 90 45 32 38V0H271V38C232 44 226 49 226 104V342C255 365 280 375 304 375C340 375 373 353 373 281V104C373 47 369 44 322 38V0H557V38C511 44 504 49 504 104V302C504 316 503 330 502 341C535 368 561 374 580 374C610 374 650 360 650 278V107C650 48 641 44 598 38V0H839Z"/></g><g transform="matrix(.017,0,0,-0.017,23.228,0)"><path id="g13-82" d="M616 481C611 545 606 633 605 675H580C563 656 549 650 523 650H121C92 650 79 653 64 675H39C37 624 31 551 27 478H64C77 528 89 562 106 579C120 596 138 606 221 606H255V133C255 48 245 42 161 35V0H487V35C399 42 389 48 389 133V606H434C493 606 518 601 536 583S568 531 580 479L616 481Z"/></g><g transform="matrix(.017,0,0,-0.017,32.471,0)"><path id="g13-97" d="M399 120C363 89 334 79 292 79S154 123 154 256C154 363 199 401 238 401C266 401 298 385 339 349C348 341 354 338 361 338C378 338 404 364 404 393C405 407 401 419 386 429C369 443 336 454 300 454H299C261 454 196 440 130 392C67 345 29 274 29 201C29 92 109 -12 246 -12C307 -12 372 31 418 96L399 120Z"/></g><g transform="matrix(.017,0,0,-0.017,39.712,0)"><path id="g13-77" d="M394 664C165 664 42 495 42 323C42 132 181 -15 381 -15C570 -15 725 116 725 332C725 529 576 664 394 664ZM374 622C491 622 571 503 571 304C571 120 494 27 399 27C271 27 196 171 196 343C196 516 274 622 374 622Z"/></g><g transform="matrix(.012,0,0,-0.012,52.974,4.134)"><path id="g22-50" d="M494 172V234H402V629H324C229 513 123 370 15 217V172H273V117C273 59 268 47 182 40V0H484V40C409 47 402 55 402 115V172H494ZM273 234H96C159 333 223 427 271 490H273V234Z"/></g><g transform="matrix(.012,0,0,-0.012,59.745,-7.578)"><path id="g54-33" d="M556 236V289H56V236H556Z"/></g></svg> Scintigraphy after Thyroidectomy: A Comparison with Therapeutic Dose <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M3" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 25.6385 20.3132" width="25.6385pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><use xlink:href="#g22-49"/></g><g transform="matrix(.012,0,0,-0.012,12.18,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.017,0,0,-0.017,18.996,1.344)"><use xlink:href="#g13-71"/></g></svg> Imaging

<div>Comparing diagnostic <sup>131</sup>I scan with postablation therapy <sup>131</sup>I imaging. A 49-year-old female after total thyroidectomy. (a) Diagnostic RAI scan performed 24 hours after 74 MBq (2 mCi) <sup>131</sup>I oral administration. (b) Therapeutic dose scan performed 3 days after 3.7 GBq (100 mCi) <sup>131</sup>I oral administration 3 weeks after diagnostic <sup>131</sup>I scan. Thyroid remnant is visualized by diagnostic and therapeutic dose of <sup>131</sup>I scans, but smaller residual thyroid is found by diagnostic scan. (c) Ultrasound fails to detect thyroid remnant.</div>

BioMed Research International

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Figure 2

Figure 2: Thyroid Remnant Estimation by Diagnostic Dose <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M1" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 25.6385 20.3132" width="25.6385pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><path id="g22-47" d="M415 0V41C335 46 327 62 327 127V635C236 611 161 593 93 583V547L150 544C187 541 192 535 192 483V127C192 59 182 46 102 41V0H415Z"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><path id="g22-49" d="M310 382C345 404 366 417 384 433C404 450 417 474 417 501C417 578 357 635 252 635H251C184 635 135 603 107 572L57 506L86 478C122 527 156 554 205 554C250 554 290 528 290 467S227 367 144 340L151 300C168 304 190 308 208 308C260 308 327 275 327 181C327 89 288 49 238 49C177 49 131 93 109 111C95 122 82 119 70 110C57 100 40 82 40 63C40 48 48 34 65 21C86 4 126 -12 177 -12C240 -12 460 60 460 222C460 298 409 363 310 380V382Z"/></g><g transform="matrix(.012,0,0,-0.012,12.18,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.017,0,0,-0.017,18.996,1.344)"><path id="g13-71" d="M338 0V35C263 42 255 49 255 133V516C255 602 263 608 338 615V650H37V615C112 608 121 602 121 516V133C121 49 112 42 37 35V0H338Z"/></g></svg> Scintigraphy or <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M2" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 67.901 20.3132" width="67.901pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><path id="g22-55" d="M257 635C101 635 25 509 25 419C25 312 99 229 220 229C237 229 254 234 278 246L328 272C302 155 197 53 48 27L55 -15C99 -14 188 2 228 18C369 73 478 199 478 382C478 518 403 635 257 635ZM236 589C313 589 339 482 339 386C339 366 338 342 334 315C320 309 304 303 279 303C206 303 159 375 159 459C159 522 183 589 236 589Z"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><use xlink:href="#g22-55"/></g><g transform="matrix(.012,0,0,-0.012,12.226,-7.578)"><path id="g22-107" d="M839 0V38C786 46 781 50 781 104V295C781 397 732 457 643 457C614 457 585 444 564 429C539 412 516 397 492 378C473 424 433 457 376 457C346 457 319 445 289 426C266 413 246 398 223 382V459C160 442 91 428 43 421V386C91 380 95 369 95 316V107C95 48 90 45 32 38V0H271V38C232 44 226 49 226 104V342C255 365 280 375 304 375C340 375 373 353 373 281V104C373 47 369 44 322 38V0H557V38C511 44 504 49 504 104V302C504 316 503 330 502 341C535 368 561 374 580 374C610 374 650 360 650 278V107C650 48 641 44 598 38V0H839Z"/></g><g transform="matrix(.017,0,0,-0.017,23.228,0)"><path id="g13-82" d="M616 481C611 545 606 633 605 675H580C563 656 549 650 523 650H121C92 650 79 653 64 675H39C37 624 31 551 27 478H64C77 528 89 562 106 579C120 596 138 606 221 606H255V133C255 48 245 42 161 35V0H487V35C399 42 389 48 389 133V606H434C493 606 518 601 536 583S568 531 580 479L616 481Z"/></g><g transform="matrix(.017,0,0,-0.017,32.471,0)"><path id="g13-97" d="M399 120C363 89 334 79 292 79S154 123 154 256C154 363 199 401 238 401C266 401 298 385 339 349C348 341 354 338 361 338C378 338 404 364 404 393C405 407 401 419 386 429C369 443 336 454 300 454H299C261 454 196 440 130 392C67 345 29 274 29 201C29 92 109 -12 246 -12C307 -12 372 31 418 96L399 120Z"/></g><g transform="matrix(.017,0,0,-0.017,39.712,0)"><path id="g13-77" d="M394 664C165 664 42 495 42 323C42 132 181 -15 381 -15C570 -15 725 116 725 332C725 529 576 664 394 664ZM374 622C491 622 571 503 571 304C571 120 494 27 399 27C271 27 196 171 196 343C196 516 274 622 374 622Z"/></g><g transform="matrix(.012,0,0,-0.012,52.974,4.134)"><path id="g22-50" d="M494 172V234H402V629H324C229 513 123 370 15 217V172H273V117C273 59 268 47 182 40V0H484V40C409 47 402 55 402 115V172H494ZM273 234H96C159 333 223 427 271 490H273V234Z"/></g><g transform="matrix(.012,0,0,-0.012,59.745,-7.578)"><path id="g54-33" d="M556 236V289H56V236H556Z"/></g></svg> Scintigraphy after Thyroidectomy: A Comparison with Therapeutic Dose <svg xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg" style="vertical-align:-5.0608pt" id="M3" height="20.3132pt" version="1.1" viewBox="-0.0657574 -15.2524 25.6385 20.3132" width="25.6385pt"><g transform="matrix(.012,0,0,-0.012,0,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.012,0,0,-0.012,6.09,-7.578)"><use xlink:href="#g22-49"/></g><g transform="matrix(.012,0,0,-0.012,12.18,-7.578)"><use xlink:href="#g22-47"/></g><g transform="matrix(.017,0,0,-0.017,18.996,1.344)"><use xlink:href="#g13-71"/></g></svg> Imaging 

Figure 2 | Thyroid Remnant Estimation by Diagnostic Dose  Scintigraphy or  Scintigraphy after Thyroidectomy: A Comparison with Therapeutic Dose  Imaging 