{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T15:16:28Z","timestamp":1783696588119,"version":"3.55.0"},"reference-count":23,"publisher":"Springer Science and Business Media LLC","issue":"5","license":[{"start":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T00:00:00Z","timestamp":1777248000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T00:00:00Z","timestamp":1777248000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"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":["Int J CARS"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Ultrasound-guided needle interventions are widely used in clinical practice, but their success critically depends on accurate needle placement, which is frequently hindered by the poor and intermittent visibility of needles in ultrasound images. Existing approaches remain limited by artifacts, occlusions, and low contrast, and often fail to support real-time continuous insertion. To overcome these challenges, this study introduces a robust real-time framework for continuous needle detection.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We present ConVibNet, an extension of VibNet for detecting needles with significantly reduced visibility, addressing real-time, continuous needle tracking during insertion. ConVibNet leverages temporal dependencies across successive ultrasound frames to enable continuous estimation of both needle tip position and shaft angle in dynamic scenarios. To strengthen temporal awareness of needle tip motion, we introduce a novel intersection and difference loss that explicitly leverages motion correlations across consecutive frames. In addition, we curated a dedicated dataset for model development and evaluation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The performance of the proposed ConVibNet model was evaluated on our dataset, demonstrating superior accuracy compared to the baseline VibNet and UNet\u2013LSTM models. Specifically, ConVibNet achieved a tip error of\n                      <jats:inline-formula>\n                        <jats:alternatives>\n                          <jats:tex-math>$$2.80\\pm 2.42$$<\/jats:tex-math>\n                          <mml:math xmlns:mml=\"https:\/\/2.zoppoz.workers.dev:443\/http\/www.w3.org\/1998\/Math\/MathML\">\n                            <mml:mrow>\n                              <mml:mn>2.80<\/mml:mn>\n                              <mml:mo>\u00b1<\/mml:mo>\n                              <mml:mn>2.42<\/mml:mn>\n                            <\/mml:mrow>\n                          <\/mml:math>\n                        <\/jats:alternatives>\n                      <\/jats:inline-formula>\n                      mm and an angle error of\n                      <jats:inline-formula>\n                        <jats:alternatives>\n                          <jats:tex-math>$$1.69^{\\circ }\\pm 2.00^{\\circ }$$<\/jats:tex-math>\n                          <mml:math xmlns:mml=\"https:\/\/2.zoppoz.workers.dev:443\/http\/www.w3.org\/1998\/Math\/MathML\">\n                            <mml:mrow>\n                              <mml:mn>1<\/mml:mn>\n                              <mml:mo>.<\/mml:mo>\n                              <mml:msup>\n                                <mml:mn>69<\/mml:mn>\n                                <mml:mo>\u2218<\/mml:mo>\n                              <\/mml:msup>\n                              <mml:mo>\u00b1<\/mml:mo>\n                              <mml:mn>2<\/mml:mn>\n                              <mml:mo>.<\/mml:mo>\n                              <mml:msup>\n                                <mml:mn>00<\/mml:mn>\n                                <mml:mo>\u2218<\/mml:mo>\n                              <\/mml:msup>\n                            <\/mml:mrow>\n                          <\/mml:math>\n                        <\/jats:alternatives>\n                      <\/jats:inline-formula>\n                      . These results represent a 0.75 mm improvement in tip localization accuracy over the best-performing baseline, while preserving real-time inference capability.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>ConVibNet advances real-time needle detection in ultrasound-guided interventions by integrating temporal correlation modeling with a novel intersection and difference loss, thereby improving accuracy and robustness and demonstrating high potential for integration into autonomous insertion systems.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s11548-026-03649-5","type":"journal-article","created":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T14:11:37Z","timestamp":1777299097000},"page":"1081-1089","update-policy":"https:\/\/2.zoppoz.workers.dev:443\/https\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["ConVibNet: needle detection during continuous insertion via frequency-inspired features"],"prefix":"10.1007","volume":"21","author":[{"given":"Jiamei","family":"Guo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhehao","family":"Duan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Neiiendam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/2.zoppoz.workers.dev:443\/https\/orcid.org\/0000-0001-7719-6505","authenticated-orcid":false,"given":"Dianye","family":"Huang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nassir","family":"Navab","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhongliang","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,4,27]]},"reference":[{"key":"3649_CR1","doi-asserted-by":"publisher","first-page":"38","DOI":"10.1016\/j.ultras.2016.02.018","volume":"69","author":"Y Kuang","year":"2016","unstructured":"Kuang Y, Hilgers A, Sadiq M, Cochran S, Corner G, Huang Z (2016) Modelling and characterisation of a ultrasound-actuated needle for improved visibility in ultrasound-guided regional anaesthesia and tissue biopsy. 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