Kev sib raug zoo ntawm Pob Txha Core Biopsy Length thiab Diagnostic Reliability

https://www.chamfondbiotech.com/4-types-of-pob txha-marrow-biopsy-needles/

Ntawm cov ntau yam ntawmpob txha hlwb biopsy,"Core Biopsy Length" yog qhov zoo li yooj yim thiab tseem ceeb metric. Nws ncaj qha txiav txim siab seb tus kws kho mob puas tuaj yeem tau txais cov ntaub ntawv txaus los ua qhov kev kuaj mob kom raug thiab yog ib qho ntawm cov qauv kub rau kev ntsuam xyuas qhov zoo ntawm biopsy.

Length Defines the Field of View: Vim li cas 1.5 cm yog "Passing Grade"?

Cov txheej txheem hematopathology thoob ntiaj teb thoob ntiaj teb pom zoo tias cov pob txha pob txha pob txha tsim nyog yuav tsum muaj qhov ntev ntawm qhov tsawg kawg yog 1.5 cm, nrog rau 2 cm lossis ntau dua yog lub xeev zoo tagnrho. Daim duab no tsis yog arbitrary. Cov txheej txheem pob txha pob txha yuav tsum tau kuaj xyuas qhov ntsuas qhov tsawg kawg yog 10 siab - lub zog hluav taws xob los ntsuas cov cellularity, kev faib tawm, qhov sib npaug ntawm cov ntaub so ntswg hematopoietic, thiab muaj cov kab mob txawv txav. Ib qho piv txwv uas luv dhau (piv txwv li,<1 cm) may only contain a small amount of tissue near the cortical bone, missing the deeper, more representative hematopoietic core. This is analogous to observing a single tree at the forest's edge and presuming to infer the health of the entire forest-a practice that leads to a high risk of misdiagnosis or missed diagnosis.

Qhov zoo sib xws ntawm Ntev thiab Diagnostic Accuracy

Ntau qhov kev tshawb fawb tau pom tias qhov kev kuaj mob sib haum xeeb thiab qhov tseeb nce ntxiv nrog rau qhov ntev ntawm lub cev nqaij daim tawv. Noj Myelodysplastic Syndromes (MDS) ua piv txwv, kev kuaj mob yog nyob ntawm qhov tseeb suav ntawm cov pob txha pob txha tawg feem pua. Yog tias tus qauv luv dhau lawm, suav cov txiaj ntsig yuav hloov pauv tsis zoo vim qhov ua piv txwv yuam kev, muaj feem cuam tshuam tsis zoo - MDS pheej hmoo siab - pheej hmoo, lossis ua yuam kev reactive hyperplasia rau MDS. Rau kev kuaj mob ntawm cov pob txha pob txha infiltration los ntawm lymphoma, cov qauv ntev dua muab lub sijhawm zoo dua los ntes cov kab mob qog nqaij hlav ntawm cov qog ntshav, yog li ua rau muaj txiaj ntsig zoo. Thaum ntsuam xyuas qhov℃ntawm myelofibrosis, tsuas yog cov ntaub so ntswg ntev txaus tuaj yeem qhia txog qhov kev loj hlob ntawm me me mus rau mob fibrosis, muab lub hauv paus txhim khu kev qha rau kev muab qhab nia.

Yuav ua li cas kom tau txais Qhov Zoo Tshaj Core Biopsy Length?

Qhov no xav kom tus neeg teb xov tooj siv cov txuj ci zoo hauv kev xaiv koob thiab siv. Ua ntej, xaiv cov koob tsim nyog yog qhov tseem ceeb. Raws li tau sau tseg hauv koj cov ntaub ntawv, cov koob siv rau kev kuaj ntshav tseem ceeb (feem ntau 11G-15G) yog tuab dua li cov koob txhaj tshuaj (18G-22G). Lawv txoj kab uas hla loj dua yog tsim los kom haum rau cov ntaub so ntswg ntev. Qhov thib ob, cov txheej txheem ua haujlwm yog qhov tseem ceeb. Lub koob yuav tsum tau ua kom maj mam thiab tsis tu ncua nrog kev sib hloov, tsis txhob muaj kev sib tsoo hnyav uas ua rau tawg. Thaum lub taub nkag mus rau hauv lub medullary kab noj hniav, tus neeg teb xov tooj yuav tsum txuas ntxiv tig thiab nce mus txog li 1-2 cm kom paub meej cov ntaub so ntswg txaus. Thaum kawg, cov txheej txheem tshem tawm kom zoo ua kom cov ntaub so ntswg ncaj ncees. Ua ntej tshem tawm cov stylet, tig nws ib nrab tig rov qab tuaj yeem pab tshem tawm cov tub ntxhais ntawm sab hauv phab ntsa, tso cai rau kev tshem tawm du.

Tshaj Length: Kev txiav txim siab txog kev ua tau zoo

Ntawm chav kawm, ntev tsis yog ib qho kev ntsuas. Kev ncaj ncees ntawm cov tub ntxhais kawm (txawm tias tawg lossis tawg), nws cov neeg sawv cev (txawm tias nws suav nrog cov pob txha cortical, cov pob txha tshem tawm, thiab cov sinusoids), thiab qhov tsis muaj cov kab mob peripheral yog qhov tseem ceeb. Ib qho piv txwv uas ntev tab sis hnyav heev los yog diluted los ntawm cov ntshav yuav tuav tus nqi kuaj mob tsawg dua li luv tab sis tsis zoo. Yog li ntawd, qhov zoo tshaj plaws pob txha hlwb biopsy nrhiav kev sib koom ua ke ntawm "ntev" thiab "zoo."

Xaus

Nyob rau hauv cov ntsiab lus, core biopsy ntev ua hauj lwm raws li lub hom phiaj yardstick rau kev ntsuas qhov kev paub ntawm cov pob txha hlwb biopsy koob siv. Nws ceeb toom rau txhua tus neeg teb xov tooj tias rab koob hauv peb txhais tes dais tsis yog lub luag haujlwm ntawm kev tau txais cov ntaub so ntswg xwb tab sis kuj yog lub luag haujlwm ntawm kev ruaj ntseg rau tus neeg mob thiab tsis txhob rov ua cov txheej txheem tsis tsim nyog. Ua raws sijhawm ntev dua, cov qauv zoo siab - zoo sib xws nrog kev nrhiav kev kho mob zoo dua.