{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T05:37:07Z","timestamp":1774330627547,"version":"3.50.1"},"reference-count":40,"publisher":"Springer Science and Business Media LLC","issue":"2","license":[{"start":{"date-parts":[[2025,3,6]],"date-time":"2025-03-06T00:00:00Z","timestamp":1741219200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,3,6]],"date-time":"2025-03-06T00:00:00Z","timestamp":1741219200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100004320","name":"Philips","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100004320","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100005713","name":"Technische Universit\u00e4t M\u00fcnchen","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100005713","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Magn Reson Mater Phy"],"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:sec>\n            <jats:title>Purpose<\/jats:title>\n            <jats:p>A fast T<jats:sub>1<\/jats:sub> mapping method of the whole pancreas remains a challenge, due to the complex anatomy of the organ. In addition, a technique for pancreas water T<jats:sub>1<\/jats:sub> mapping is needed, since the T<jats:sub>1<\/jats:sub> is biased in the presence of fat. The purpose of this work is to accelerate the acquisition of water selective T<jats:sub>1<\/jats:sub> (wT<jats:sub>1<\/jats:sub>) mapping for the whole pancreas at 3\u00a0T.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Methods<\/jats:title>\n            <jats:p>The proposed method combines a continuous inversion-recovery Look-Locker acquisition with a single-shot gradient echo spiral readout, water-fat separation and dictionary matching for wT<jats:sub>1<\/jats:sub> mapping of the whole pancreas at 3\u00a0T. The bias of T<jats:sub>1<\/jats:sub> in the presence of fat was evaluated in a phantom by comparing the modified Look-Locker inversion-recovery (MOLLI) and the proposed method to MRS measurements. The present method was validated in 11 volunteers by evaluating its pancreas coverage and repeatability and by comparing it to MOLLI. Four pancreatitis patients were evaluated using the proposed method and clinical scans.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Results<\/jats:title>\n            <jats:p>The phantom wT<jats:sub>1<\/jats:sub> results are in better agreement to MRS (<jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$${\\text{wT}}_{1} = 1.02{\\text{*wT}}_{{1{\\text{MRS}}}} - 47.81,{ }R^{2} = 0.99){ }$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:msub>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mn>1<\/mml:mn>\n                      <\/mml:msub>\n                      <mml:mo>=<\/mml:mo>\n                      <mml:mn>1.02<\/mml:mn>\n                      <mml:msub>\n                        <mml:mtext>*wT<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mtext>MRS<\/mml:mtext>\n                        <\/mml:mrow>\n                      <\/mml:msub>\n                      <mml:mo>-<\/mml:mo>\n                      <mml:mn>47.81<\/mml:mn>\n                      <mml:mo>,<\/mml:mo>\n                      <mml:mrow\/>\n                      <mml:msup>\n                        <mml:mi>R<\/mml:mi>\n                        <mml:mn>2<\/mml:mn>\n                      <\/mml:msup>\n                      <mml:mrow>\n                        <mml:mo>=<\/mml:mo>\n                        <mml:mn>0.99<\/mml:mn>\n                        <mml:mo>)<\/mml:mo>\n                        <mml:mrow\/>\n                      <\/mml:mrow>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula> than MOLLI (<jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$${\\text{T}}_{{1{\\text{MOLLI}}}} = 1.13*{\\text{wT}}_{{1{\\text{MRS}}}} - 74.65, R^{2} = 0.98)$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:msub>\n                        <mml:mtext>T<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mtext>MOLLI<\/mml:mtext>\n                        <\/mml:mrow>\n                      <\/mml:msub>\n                      <mml:mo>=<\/mml:mo>\n                      <mml:mn>1.13<\/mml:mn>\n                      <mml:mrow\/>\n                      <mml:mo>\u2217<\/mml:mo>\n                      <mml:msub>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mtext>MRS<\/mml:mtext>\n                        <\/mml:mrow>\n                      <\/mml:msub>\n                      <mml:mo>-<\/mml:mo>\n                      <mml:mn>74.65<\/mml:mn>\n                      <mml:mo>,<\/mml:mo>\n                      <mml:msup>\n                        <mml:mi>R<\/mml:mi>\n                        <mml:mn>2<\/mml:mn>\n                      <\/mml:msup>\n                      <mml:mrow>\n                        <mml:mo>=<\/mml:mo>\n                        <mml:mn>0.98<\/mml:mn>\n                        <mml:mo>)<\/mml:mo>\n                      <\/mml:mrow>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula>. The volunteer wT<jats:sub>1<\/jats:sub> results demonstrate the whole pancreas coverage capability for different fat fractions, good repeatability (<jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$${\\text{wT}}_{{1,{ }2^\\circ }} = 0.98*{\\text{wT}}_{{1,{ }1^\\circ }} + 17.40, R^{2} = 0.69)$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:mmultiscripts>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mo>,<\/mml:mo>\n                          <mml:mrow\/>\n                          <mml:msup>\n                            <mml:mn>2<\/mml:mn>\n                            <mml:mo>\u2218<\/mml:mo>\n                          <\/mml:msup>\n                        <\/mml:mrow>\n                        <mml:mrow\/>\n                      <\/mml:mmultiscripts>\n                      <mml:mo>=<\/mml:mo>\n                      <mml:mn>0.98<\/mml:mn>\n                      <mml:mrow\/>\n                      <mml:mo>\u2217<\/mml:mo>\n                      <mml:mmultiscripts>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mo>,<\/mml:mo>\n                          <mml:mrow\/>\n                          <mml:msup>\n                            <mml:mn>1<\/mml:mn>\n                            <mml:mo>\u2218<\/mml:mo>\n                          <\/mml:msup>\n                        <\/mml:mrow>\n                        <mml:mrow\/>\n                      <\/mml:mmultiscripts>\n                      <mml:mo>+<\/mml:mo>\n                      <mml:mn>17.40<\/mml:mn>\n                      <mml:mo>,<\/mml:mo>\n                      <mml:msup>\n                        <mml:mi>R<\/mml:mi>\n                        <mml:mn>2<\/mml:mn>\n                      <\/mml:msup>\n                      <mml:mrow>\n                        <mml:mo>=<\/mml:mo>\n                        <mml:mn>0.69<\/mml:mn>\n                        <mml:mo>)<\/mml:mo>\n                      <\/mml:mrow>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula> and lower T<jats:sub>1<\/jats:sub> values than MOLLI (<jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$${\\text{wT}}_{1} = 0.34{\\text{*T}}_{{1{\\text{MOLLI}}}} + 383.65,{\\text{ R}}^{2} = 0.26)$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:msub>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mn>1<\/mml:mn>\n                      <\/mml:msub>\n                      <mml:mo>=<\/mml:mo>\n                      <mml:mn>0.34<\/mml:mn>\n                      <mml:msub>\n                        <mml:mtext>*T<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mtext>MOLLI<\/mml:mtext>\n                        <\/mml:mrow>\n                      <\/mml:msub>\n                      <mml:mo>+<\/mml:mo>\n                      <mml:mn>383.65<\/mml:mn>\n                      <mml:mo>,<\/mml:mo>\n                      <mml:msup>\n                        <mml:mrow>\n                          <mml:mspace\/>\n                          <mml:mtext>R<\/mml:mtext>\n                        <\/mml:mrow>\n                        <mml:mn>2<\/mml:mn>\n                      <\/mml:msup>\n                      <mml:mrow>\n                        <mml:mo>=<\/mml:mo>\n                        <mml:mn>0.26<\/mml:mn>\n                        <mml:mo>)<\/mml:mo>\n                      <\/mml:mrow>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula>. The wT<jats:sub>1<\/jats:sub> maps in patients captured diverse pancreatitis regions with higher values <jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$$({\\text{wT}}_{{1{\\text{Patients}}}} = \\left[ {831 - 1696} \\right]\\;{\\text{ms}})$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:mo>(<\/mml:mo>\n                      <mml:msub>\n                        <mml:mtext>wT<\/mml:mtext>\n                        <mml:mrow>\n                          <mml:mn>1<\/mml:mn>\n                          <mml:mtext>Patients<\/mml:mtext>\n                        <\/mml:mrow>\n                      <\/mml:msub>\n                      <mml:mo>=<\/mml:mo>\n                      <mml:mfenced>\n                        <mml:mrow>\n                          <mml:mn>831<\/mml:mn>\n                          <mml:mo>-<\/mml:mo>\n                          <mml:mn>1696<\/mml:mn>\n                        <\/mml:mrow>\n                      <\/mml:mfenced>\n                      <mml:mspace\/>\n                      <mml:mtext>ms<\/mml:mtext>\n                      <mml:mo>)<\/mml:mo>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula> than in the volunteers <jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$$\\left( {{\\text{wT}}_{{1{\\text{Volunteers}}}} = \\left[ {605 - 799} \\right]\\;{\\text{ms}}} \\right)$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mfenced>\n                      <mml:mrow>\n                        <mml:msub>\n                          <mml:mtext>wT<\/mml:mtext>\n                          <mml:mrow>\n                            <mml:mn>1<\/mml:mn>\n                            <mml:mtext>Volunteers<\/mml:mtext>\n                          <\/mml:mrow>\n                        <\/mml:msub>\n                        <mml:mo>=<\/mml:mo>\n                        <mml:mfenced>\n                          <mml:mrow>\n                            <mml:mn>605<\/mml:mn>\n                            <mml:mo>-<\/mml:mo>\n                            <mml:mn>799<\/mml:mn>\n                          <\/mml:mrow>\n                        <\/mml:mfenced>\n                        <mml:mspace\/>\n                        <mml:mtext>ms<\/mml:mtext>\n                      <\/mml:mrow>\n                    <\/mml:mfenced>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula>, thus showing their potential clinical feasibility.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusion<\/jats:title>\n            <jats:p>The present work proposes a wT<jats:sub>1<\/jats:sub> mapping methodology of the whole pancreas at 3\u00a0T, where 24 slices (<jats:inline-formula>\n                <jats:alternatives>\n                  <jats:tex-math>$$2 \\times 2 \\times 5\\;{\\text{mm}}^{3}$$<\/jats:tex-math>\n                  <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                    <mml:mrow>\n                      <mml:mn>2<\/mml:mn>\n                      <mml:mo>\u00d7<\/mml:mo>\n                      <mml:mn>2<\/mml:mn>\n                      <mml:mo>\u00d7<\/mml:mo>\n                      <mml:mn>5<\/mml:mn>\n                      <mml:mspace\/>\n                      <mml:msup>\n                        <mml:mrow>\n                          <mml:mtext>mm<\/mml:mtext>\n                        <\/mml:mrow>\n                        <mml:mn>3<\/mml:mn>\n                      <\/mml:msup>\n                    <\/mml:mrow>\n                  <\/mml:math>\n                <\/jats:alternatives>\n              <\/jats:inline-formula>) were acquired in three short breath-holds of 12\u00a0s each.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1007\/s10334-025-01224-8","type":"journal-article","created":{"date-parts":[[2025,3,6]],"date-time":"2025-03-06T15:23:50Z","timestamp":1741274630000},"page":"271-283","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Whole pancreas water T1 mapping at 3 Tesla"],"prefix":"10.1007","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-9662-9132","authenticated-orcid":false,"given":"Elizabeth","family":"Huaroc Moquillaza","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kilian","family":"Weiss","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lisa","family":"Steinhelfer","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jonathan","family":"Stelter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcus R.","family":"Makowski","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rickmer","family":"Braren","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mariya","family":"Doneva","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dimitrios C.","family":"Karampinos","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2025,3,6]]},"reference":[{"key":"1224_CR1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejro.2024.100572","volume":"12","author":"A Beleu","year":"2024","unstructured":"Beleu A, Canonico D, Morana G (2024) T1 and T2-mapping in pancreatic MRI: current evidence and future perspectives. 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Dimitrios C. Karampinos receives grant support from Philips Healthcare and is a member of the Editorial Board of Magnetic Resonance Materials in Physics, Biology and Medicine.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}},{"value":"Informed consent was obtained from all volunteers and patients prior to inclusion.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Not applicable.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to publication"}},{"value":"The volunteer part of the present study was approved by our institutional review board (Ethics Commission of the Medical Faculty, Technical University of Munich, Germany; Ethics application number 106\/20 S-SR). The patient part of the present study was approved by our institutional review board (Ethics Commission of the Medical Faculty, Technical University of Munich, Germany; Ethics application number 245\/19 S-SR).","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethical approval"}}]}}